Browse

Results per page:  20    50    100    200    All

Displaying 1 to 655 of 655 records

Click the column headings to sort the table in ascending order of this value.

Heading Date Maker Place Materials Inv Num
View Record Side-Lever Morse Key c. 1910 Marconi's Wireless Telegraph Co. Ltd. England Mahogany, ebonite, brass, bakelite. 12506
View Record Induction Coil c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, wax, brass, ivory?, ebonite, celluloid. 12640
View Record Medal Institute Of Radio Engineers c. 1922 Sanford. Unknown Gold. 12658
View Record Forward Spark 'B' Wavemeter No. 1511 c. 1918 War Department Signals Flying Corps. Britain Steel, brass, bakelite?, teak, carborundum. 12772
View Record Large Switchboard Type 95 Early 20th Century Marconi International Marine Communication Co. Ltd. England Wood, iron, glass, nickel, assorted metals. 12779
View Record Rare Portable Lifeboat Transmitter Receiver c. 1905 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, bakelite, ebonite, metal. 12924
View Record Aircraft Wireless Telephone Type AD2 c. 1920 Marconi's Wireless Telegraph Co. Ltd. England Linen, ebonite, glass, wood, plastic?, assorted metals. 12938
View Record Assorted Components For T1154 And R1155A In Wooden Chest 1940s Unknown England Wood, steel, glass, canvas, assorted metals. 13044
View Record Four-Second Alarm Type KM1 20th Century Marconi's Wireless Telegraph Co. Ltd. London Iron, metal, nickel, glass. 13115
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 13117
View Record Balloon Envelope Radio Valve Early 20th Century Unknown Unknown Glass, steel, bakelite?, assorted metals. 13172
View Record Telephone Relay Type G c. 1908 S.G. Brown. London Mahogany, steel?, brass. 13183
View Record Bradfield Leading-In Insulator No.1 1910 Marconi's Wireless Telegraph Co. Ltd. England Iron, ebonite. 13694
View Record Cover For Multiple Tuner c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Mahogany, brass, glass, paper. 13774
View Record Telefunken Radio Valve Type LD15 c. 1945 Telefunken. Germany Steel, glass, assorted metals. 14100
View Record 'Marconi' Auto-Alarm Bell Type 117 c. 1920 Marconi International Marine Communication Co. Ltd. England Brass, aluminium, wood, teak. 14147
View Record Framed Marconi Order Slip Dated 1922 Marconi's Wireless Telegraph Co. Ltd. London Glass, wood, paper. 14183
View Record Brimar Radio Valve Type 6SN7GT Mid 20th Century Brimar. England Glass, steel, plastic?, assorted metals. 14188
View Record 75th Anniversary Commemorative Plate 1978 Ceragraphics Panorama Studios. Devon, England China, paint, gold. 14457
View Record Large Main Jigger With Case Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Mahogany?, ebonite, wood, brass. 14809
View Record Hirst Bronze Bust Dated 1936 S.H. Paulon. Unknown Bronze, marble. 14884
View Record Medal Portugese Marconi Company Dated 1951 Joao da Silva. Portugal Bronze 14889
View Record Bellini-Tosi Direction Finder 1907 E. Bellini & A. Tosi. France Walnut, brass, steel?, iron, bakelite, ebonite. 14937
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 20th Century RCA. USA Glass, plastic?, steel, assorted metals. 15130
View Record 75th Anniversary Commemorative Mug 1978 Ceragraphics Panorama Studios. Devon, England China, paint, gold. 15211
View Record RCA Radiotron Radio Tube Type VR54 20th Century RCA. USA Plastic?, steel, assorted metals. 15408
View Record Radio Valve Type ATP4 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 15492
View Record 'Cow's Tail' Insulator Early 20th Century Unknown Unknown Brass, wood, cable. 15574
View Record Marconi Radio Valve Type DER c. 1925 Marconi-Osram Valves. London Glass, bakelite, steel, assorted metals. 15591
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 15771
View Record Marconiphone Two-Valve Receiver Type V2 1923 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, glass, nickel, bakelite, ebonite, celluloid, steel. 15836
View Record Record 1920s Columbia Records. London Plastic, paper. 16050
View Record Brownie Crystal Receiver No 2 c. 1925 Brownie Wireless Co. Ltd. Britain Ebonite, glass, assorted metals, copper. 16661
View Record Marconi Radio Valve Type DE3 c. 1923 Marconi-Osram Valves. London Glass, steel, plastic?, brass?, assorted metals. 16810
View Record S. E. Marchesi Marconi 1931 Sir Max Beerbohm London Paper, watercolour, plastic, metal, nylon? 16862
View Record Drysdale-Tinsley Vibration Galvanometer 20th Century H. Tinsley & Co. London Brass, iron, glass, bakelite?, mahogany, plastic. 17033
View Record RCA Radiotron Radio Tube Type 6D6 With Carton 20th Century RCA. New Jersey, USA Plastic?, steel, glass, assorted metals. 17167
View Record Combined Switchboard Type 277 And Fuseboard Type 279 Early 20th Century Marconi International Marine Communication Co. Ltd. England Steel, metal, glass, nickel, bakelite 17193
View Record Aerial Lead-In Insulator Early 20th Century Unknown Unknown Earthenware, copper, iron. 17338
View Record Early Coherer c. 1899 Unknown Unknown Glass, copper, nickel, silver, assorted metals. 17473
View Record Bank Of Six Leyden Jar Condensers 1900 Unknown Unknown Glass, brass, mahogany, felt. 17579
View Record Decade Condenser Type 21F Early 20th Century Muirhead & Co. Ltd. Britain Teak, bakelite, plastic?, steel. 17600
View Record Induction Coil 1900s Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, ebonite, ivory?, copper. 17841
View Record Amplifier And Detector Type 55A With Headphones c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Glass, teak, steel, brass. 18067
View Record RCA Radiotron Cunningham Radio Tube Type 5Z3 With Carton 20th Century RCA. New Jersey, USA Glass, ribbon, steel, plastic?, assorted metals. 18078
View Record Tuning Condenser c. 1915 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass. 18093
View Record Magnetic Detector Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, steel, ebonite, nickel. 18119
View Record Transmitter Tuner Type MC13 c. 1930 Unknown Unknown Steel, nickel, plastic, assorted metals. 18269
View Record Magnetic Detector Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Mahogany, glass, brass, ebonite, bakelite, iron. 18289
View Record Facsimile Of Fleming Letter c. 1904 J.A. Fleming. London Paper. 18292
View Record Metal Component Pair FT-162 For Radio 20th Century Unknown Unknown Iron?, steel, nickel. 18465
View Record Mullard Radio Valve Type ORA/B c. 1922 Mullard Radio Valve Co. Unknown Glass, rubber?, assorted metals. 18833
View Record Marconiphone Two-Valve Receiver Type 21 1925 Marconiphone Co. Ltd. London Bakelite?, ebonite, glass, brass, mahogany, plastic? 18847
View Record Direct Reading Portable Decremeter Dated 1909 Marconi's Wireless Telegraph Co. Ltd. England Teak, brass, ebonite, bakelite, leather. 19011
View Record Mullard Wecovalve Radio Valve Peanut Type c. 1920 Mullard Radio Valve Co. Ltd. England Glass, steel, plastic?, assorted metals 19239
View Record Quenched Spark Disc Unit 20th Century Unknown Unknown Iron, nickel, ebonite, assorted metals. 19420
View Record Early Experimental Coherer c. 1902 Unknown Unknown Glass, copper, cork, iron, assorted metals. 19433
View Record Ferranti Radio Valve Type NSP1 Mid 20th Century Ferranti. Britain Glass, steel, bakelite, assorted metals. 19461
View Record Triotron Radio Tube Type 6F8G With Carton 20th Century Triotron Radio. Austria Plastic?, glass, steel, assorted metals. 19616
View Record Portable Aircraft Spark Transmitter 40W c. 1912 Marconi's Wireless Telegraphy Co. Ltd. London Teak, leather, ebonite, steel, bakelite?, brass. 19772
View Record Marconi Radio Valve Type 42A 20th Century Officine Marconi-Genova. Italy Glass, steel, plastic?, assorted metals. 19824
View Record Radio Call Sign Early 20th Century Unknown Unknown Mahogany, paint. 20091
View Record Marconi Radio Valve Type MH4 c. 1931 Marconi's Wireless Telegraph Co. Ltd. England Cooper, steel, plastic?, assorted metals. 20104
View Record Myers Dry Battery Radio Tube With Carton c. 1924 E. B. Myers Co. Ltd. Canada Glass, bakelite, steel, assorted metals. 20141
View Record Company Seal Embosser Vulcan Foundry Ltd 20th Century Unknown Britain Bronze?, iron?, steel. 20262
View Record Emergency Quenched-Gap Transmitter Type 335 c. 1920 Marconi's Wireless Telegraph Co. Ltd. England Teak, iron, copper, ebonite, nickel, glass, steel, assorted metals. 20374
View Record Marconi Radio Valve Type DEQ c. 1923 Marconi-Osram Valves. England Glass, steel, assorted metals. 20655
View Record Company Seal Embosser Fan Manufacturing Company 20th Century Witherby & Co. Ltd. London Steel, baize. 20679
View Record Tuning Condenser No 4 c. 1906 Marconi's Wireless Telegraph Co. Ltd. England Ebonite, brass, paper. 20696
View Record Marconi Radio Valve Type DE3C c. 1924 Marconi-Osram Valves. London Glass, bakelite, steel, tungsten, assorted metals. 20731
View Record Marconi Bellini-Tosi Direction Finder c. 1916 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, bakelite, ebonite, steel?, copper. 20815
View Record Morse Tape Inker c. 1900 Siemens Brothers. London Brass, mahogany, paper, assorted metals. 20877
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 20953
View Record Marconi's Oil Righi Oscillator 1895 Augusto Righi. Bologna, Italy Mahogany, brass, ebonite, celluloid. 21300
View Record Marconi Crystal Receiver Type 31C 1910 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, nickel, mahogany?, bakelite. 21573
View Record Syntoniser Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Ebonite?, iron?, teak. 21593
View Record Replica Righi Oscillator Late 20th Century Unknown Unknown Brass, ebonite?, plastic?, mahogany. 21726
View Record 4 Volt Fleming Oscillation Valve c. 1905 Royal Ediswan. London Brass, glass, assorted metals. 21763
View Record Fleming Valve c. 1905 Ediswan. London Glass, assorted metals, brass. 21803
View Record Mullard Radio Valve Type PM4 1930s Mullard. England Glass, steel, bakelite, assorted metals. 21856
View Record 'Marconi' Self-Monitoring Receiver Type AD98 Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. England Steel, plastic?, perspex, assorted metals. 22068
View Record Company Seal Embosser Dick Kerr & Company 20th Century Jordan & Sons Ltd. London Cooper, brass, steel, wood, baize. 22130
View Record Forward 'B' Spark Wavemeter No. 1339 c. 1918 War Department Signals Flying Corps. Britain Steel, brass, bakelite?, teak, carborundum. 22136
View Record RCA Radiotron Radio Tube Type 6C6 With Carton 20th Century RCA. USA Glass, steel, plastic?, assorted metals. 22269
View Record Round Radio Valve Type N c. 1915 Ediswan. London Glass, steel, asbestos, platinum-iridium, assorted metals. 22293
View Record Ediswan Radio Valve Type ATP4 With Carton Mid 20th Century Siemens Edison Swan Ltd. London Glass, steel, plastic?, assorted metals. 22414
View Record 'Marconi' Auto-Alarm Selector Type 333 c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Metal, brass, steel?, aluminium, glass. 22770
View Record RCA Radiotron Cunningham Radio Tube Type 5Z3 With Carton 20th Century RCA. New Jersey, USA Glass, ribbon, steel, plastic?, assorted metals. 22875
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, phosphorous, nickel?, plastic?, steel, assorted metals 22908
View Record Marconi Commemorative Plaque Dated 1912 Unknown Italy Brass 23050
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 23157
View Record Two Ribbed Wooden Pillar Insulators Early 20th Century Unknown Unknown Wood, brass. 23387
View Record Instruction Manual For The Marconi Direction Finder Type No. 6 c. 1916 Sanders Phillips & Co. Ltd. London Paper. 23434
View Record Marconi Induction Coil 1899 Marconi Company. London Ebonite, platinum, brass, plastic?, ebonite. 23658
View Record Set Of Inductors Type TM1438 20th Century Marconi Instruments Ltd. England Wood, leather, steel, bakelite 23891
View Record Marconi Auto-Alarm Type M Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. England Steel, bakelite, glass, assorted metals. 24207
View Record Experimental Billi Condenser c. 1900 Unknown Unknown Copper?, steel?, ebonite, brass, mahogany, plywood, bakelite, celluloid. 24292
View Record Morse Key Type 100A Early 20th Century Marconi International Marine Communication Co. Ltd. Britain Nickel, mahogany, ebonite, steel. 24429
View Record Pair Of Mounted Guard Lamps Early 20th Century Unknown Unknown Mahogany?, glass, copper, brass. 24488
View Record Experimental Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, brass?, platinum. 24865
View Record Tuning Indicator With Glass Lamp Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Mahogany, brass, metal alloy, glass, ebonite. 24927
View Record Bank Of Six Leyden Jar Condensers 1900 Unknown Unknown Glass, brass, mahogany, teak?, felt. 24931
View Record Marconi Radio Valve Type MH4 1930s Marconi-Osram Valves. London Glass, plastic?, nickel, steel, assorted metals. 24996
View Record Shunt Regulator 20th Century Unknown Unknown Iron, bakelite?, brass. 25048
View Record Hytron Radio Tube Type CV1759 With Carton Dated 1944 Hytron Corporation. Massachusetts, USA Steel, plastic?, glass, assorted metals. 25098
View Record Company Seal Embosser Coastal Radio Ltd 20th Century Unknown Unknown Steel, wood, cooper, baize 25157
View Record Marconi Radio Valve Type V24 c. 1919 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 25217
View Record Cold Cathode Ray Tube c. 1902 Unknown Unknown Glass, mahogany, copper, metal. 25358
View Record Marconi Radio Valve Type V24 c. 1925 Marconi Valves. England Glass, steel, assorted metals. 25470
View Record Marconi Radio Valve Type V24 c. 1918 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 25691
View Record Ship's Wireless Spark-Gap 1905 Marconi's Wireless Telegraph Co. Ltd. London Brass, cast iron, teak, metal. 25812
View Record Cossor Radio Valve Type V10 20th Century Cossor. England Glass, steel, plastic?, oxide, assorted metals. 26034
View Record Marconi Radio Valve Type DEQ c. 1923 Marconi Valves. England Glass, steel, assorted valves. 26547
View Record GPO Radio Valve Type No 2 20th Century Unknown Britain Glass, brass, plastic?, nickel. 26614
View Record Aerial Lead-In Insulator Early 20th Century Unknown Unknown Earthenware, copper, iron. 26677
View Record Mazda Radio Valve Type PY33 With Carton 1960s Mazda England Glass, steel, plastic?, assorted metals. 26731
View Record Marzi Microphone 1910 Marzi Company. France Wood, aluminium, steel. 27140
View Record Marconi Radio Valve Type Q c. 1918 Ediswan. London Glass, steel, assorted metals. 27357
View Record Mullard Wecovalve Radio Valve Peanut Type With Carton c. 1920 Mullard Radio Valve Co. Ltd. England Glass, steel, plastic?, assorted metals. 27364
View Record Aerial Switch Type 272 Early 20th Century Marconi International Marine Communication Co. Ltd. England Wood, peak, steel, nickel, porcelain, ebonite. 27556
View Record Marconi Receiver Type AD8882B c. 1939 Marconi's Wireless Telegraph Co. Ltd. London Steel, bakelite?, perspex?, steel. 27685
View Record Illuminated Globe 1971 George Philip & Son Limited London Plastic, paper, glass, assorted metals. 27716
View Record Replica Grasshopper Send-Receive Morse Key 1970s Unknown Unknown Brass, plastic?, mahogany. 27753
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 27778
View Record Marconi Telegraph Communication Chart c. 1922 Marconi International Marine Communication Co. Ltd. London Wood, glass, paper. 27846
View Record Horn Loudspeaker Type AR19 c. 1923 Graham Amplion Ltd. London Oak, brass, baize. 28052
View Record Multiple Tuner c. 1907 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, ebonite, brass, copper, bakelite. 28107
View Record Hivac Radio Valve Type CV1052 Mid 20th Century Hivac. England Glass, plastic?, steel, assorted metals. 28126
View Record Tuning Condenser c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Ebonite, steel?, nickel. 28159
View Record Graduated Swivelling Coils For Triple Crystal Detector Early 20th Century Unknown Unknown Copper, steel, tape. 28254
View Record Marconi Crystal Receiver Type 31 1910 Marconi's Wireless Telegraph Co. Ltd. London Brass, ebonite, teak, metal. 28284
View Record Radio Receiver Type BC342N 1940s Unknown Unknown Steel, bakelite, glass, nickel, assorted metals. 28392
View Record High-Discrimination Communication Receiver Type Rg 44 c. 1948 Marconi's Wireless Telegraph Co. Ltd. Chelmsford, England Steel, glass, bakelite, perspex, assorted metals. 28532
View Record Direct Reading Portable Decremeter Dated 1909 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, leather, ebonite, bakelite. 28627
View Record Radio Valve Type ML6C Mid 20th Century Unknown Unknown Glass, steel, ceramics, assorted metals. 28855
View Record Large Rotary Converter Dated 1915 Electric Construction Co. Ltd. Wolverhampton, England Iron, steel, brass, copper, metal alloy. 29140
View Record Ship's Transmitter Jigger Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Brass, mahogany. 29208
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 29233
View Record Marconi Radio Valve Type DEQ c. 1923 Marconi Valves. England Glass, steel, assorted metals. 29390
View Record Direction-Finding Coil For Receiver Type R1155A c. 1940 Air Ministry. Unknown Iron, bakelite?, plastic?, steel. 29505
View Record Marconi Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 29519
View Record 'Marconi' Direction Finder Type DFM2 c. 1927 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, ebonite, glass, bakelite, celluloid, steel. 29821
View Record RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 30472
View Record Irwin Oscillograph Early 20th Century Robert W. Paul. London Iron?, brass, copper. 30624
View Record Induction Coil For Tuned Field Transmitter 1907 Marconi's Wireless Telegraph Co. Ltd. London Brass, mahogany, ebonite. 30667
View Record National Union Radio Tube Type 12SA7GT With Carton c. 1942 National Union. New Jersey, USA Glass, plastic?, steel, assorted metals. 30961
View Record Large Emergency Morse Key Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Brass, metal alloy, teak, ebonite. 31025
View Record Earth Arrester Plate Early 20th Century Unknown Unknown Brass, copper. 31083
View Record Marconi's Parabolic Receiver c. 1896 Guglielmo Marconi. England Wood, copper, nickel, glass, assorted metals. 31092
View Record Manganin Coils Dial Bridge Early 20th Century W.G. Pye & Co. Cambridge, England Teak, ebonite, bakelite, brass, copper, celluloid, assorted metals. 31104
View Record Marconi Radio Valve Type Q c. 1919 Ediswan. London Glass, steel, assorted metals. 31396
View Record Puratone Rubon Radio Valve 1924 Puratone Rubon. Britain Glass, plastic, steel, assorted metals. 31417
View Record Bust of T. L. Eckersley Late 20th Century K. Scott. Unknown Bronze, oak?, plaster, metal. 31421
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 31425
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 31778
View Record RCA Radiotron Radio Tube Type 6D6 With Carton 20th Century RCA. New Jersey, USA Plastic?, steel, glass, assorted metals. 31810
View Record Vertical Precision Instrument Early 20th Century Unknown Unknown Brass, paint, bronze, assorted metals. 32039
View Record Generator Propellor 20th Century Marconi's Wireless Telegraph Co. Ltd. Unknown Laminated mahogany, brass. 32068
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 32090
View Record Multiple Oscillator c. 1898 Unknown England Brass, ebonite, mahogany. 32103
View Record Variable Pitch Generator Windmill Early 20th Century Unknown Unknown Metal alloy, iron. 32380
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 32845
View Record Catalogue For Aircraft Wireless Receiver c. 1921 Marconi's Wireless Telegraph Co. Ltd. England Paper 32919
View Record Marconi Radio Valve Type Q c. 1916 Ediswan. London Glass, steel, assorted metals. 33191
View Record Marconiphone Personal Receiver Type P17B c. 1950 Marconiphone Co. Ltd. England Plastic, chromium, nickel, glass?, leather. 33654
View Record Company Seal Embosser Clare-Elliot Ltd 20th Century Unknown Britain Steel, wood, brass, baize. 33725
View Record Medal International Marconi Conference Dated 1951 Coffredo Edginelli? Italy Aluminium 34099
View Record Marconiphone Dealer's Sign Late 1920s Marconi Company. England Cast alloy, paint. 34130
View Record Brimar Radio Valve Type 50CD6G With Carton Mid 20th Century Brimar Ltd. England Glass, steel, plastic?, assorted metals. 34364
View Record Exhibition Medal Exposition of Decorative and Modern Art Dated 1902 Unknown Italy Gilt metal 34377
View Record Philips Radio Valve Type QQE02 With Separate Carton Late 20th Century Philips. Holland Glass, steel, assorted metals. 34480
View Record Telegraph Relay Early 20th Century H.W. Sullivan. London Mahogany, baize, glass, brass, iron?, assorted metals. 34506
View Record Album of Direction Finder c. 1916 Marconi's Wireless Telegraph Co. Ltd. London Paper. 34635
View Record Early Coherer c. 1899 Unknown Chelmsford, England Glass, copper, nickel, silver, assorted metals. 34674
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass, bakelite. 34701
View Record Marconi Studio Photographic Portrait 20th Century Unknown Unknown Cardboard, photographic paper. 34711
View Record 'Marconi' Auto-Alarm Buzzer Type 225 c. 1920 Marconi's Wireless Telegraph Co. Ltd. England Metal, ebonite?, aluminium, steel. 34759
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 35098
View Record Round Radio Valve Type CA c. 1915 Ediswan. London Glass, oxide, platinum, asbestos, brass, ebonite. 35122
View Record Medal John Fritz Dated 1922 V. D. Brenner. Unknown Bronze 35206
View Record Bell Telephone Microphone c. 1923 Unknown England Brass, ebonite, nickel. 35219
View Record Marconi Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 35245
View Record Purchase Receipt For Marconi Radio Type T36 AB Dated 1954 E.M.I. Sales & Service Ltd. London Paper, plastic. 35311
View Record Silver Table Lighter With Case Dated 1912 Alfred Foster. London Silver, bakelite?, marble, velvet, silk, leather. 35386
View Record Ship's Direction Finder 1920s Unknown Unknown Glass, plastic, bakelite, teak?, copper, assorted metals. 35780
View Record Marconiphone Receiver Model 235 c. 1935 Marconiphone Co. Ltd. England Leathercloth, chromium, simulated mother-of pearl 35936
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 35970
View Record Standard Resistor Type 1682 20th Century H. Tinsley & Co. London Chromium, plastic?, enamelled metal. 35998
View Record Multiple Tuner 1907 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, ebonite, brass, copper, bakelite. 36479
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 36535
View Record Radio Valve ARP12-Type Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 36764
View Record Ladies' Silver Pocket Scent Bottle Hallmarked 1911 Charles Perry & Co. of Birmingham. Birmingham Silver. 37413
View Record Commemarative Plate c. 1903 W. Adams & Co. England Pottery 37493
View Record 'Marconi' Wavemeter Type MC1 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Brass, mahogany?, ebonite, bakelite, nickel, copper. 37590
View Record Raytheon Radio Tube Type 6H6G With Carton Dated 1934 Raytheon. Massachusetts, USA Glass, steel, plastic?, assorted metals. 37614
View Record Bellini-Tosi Radiogoniometer c. 1907 Bellini & Tosi. France Oak, brass, ebonite, metal. 37692
View Record Empty Case Of Forward Spark 'B' Wavemeter c. 1918 War Department Signals Flying Corps. Britain Teak 37889
View Record Instruction Manual For Aircraft Wireless Telephone Type AD2 c. 1920 Sanders Phillips & Co. Ltd. London Paper 38181
View Record Two Mica Crystals 20th Century Unknown Unknown Mica, mahogany, baize. 38233
View Record Mazda Radio Valve Type CV6 With Carton 20th Century Mazda Company. Unknown Glass, plastic?, steel, assorted metals. 38616
View Record 'Marconi' Crystal Wavemeter Type MC2 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Nickel, steel, glass, ebonite, bakelite, teak, copper, paper. 38737
View Record Raytheon Radio Tube Type 6J7G Mid 20th Century Raytheon. USA Glass, steel, plastic?, assorted metals. 39208
View Record Round Radio Valve Type N c. 1915 Ediswan. London Glass, steel, asbestos, platinum-iridium, assorted metals. 39244
View Record Amplifier Type 91 c. 1918 Marconi's Wireless Telegraph Co. Ltd. London Teak, nickel, glass, steel? bakelite. 39440
View Record Main Starter Switch Early 20th Century Unknown Unknown Iron, brass, copper, celluloid?, bakelite?, wood. 39443
View Record Image Orthicon Tube Mid 20th Century English Electric Valve Co. Ltd. England Glass, bakelite?, steel, nickel, assorted metals. 39508
View Record Instruction Manuals For Marconi Crystal Receiver Type 16 c. 1916 Marconi's Wireless Telegraph Co. Ltd. London Paper. 39535
View Record Marconi Radio Thermal Delay Switch DLS-Type Early 20th Century Ediswan. London Glass, steel, bakelite?, assorted metals. 39568
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 39800
View Record Company Seal Embosser GEC Medical Equipment Ltd 20th Century Unknown Britain Steel, wood, brass, baize. 39997
View Record Rotating Multiple Stamp Holder 20th Century E.M.R. London Steel 40066
View Record Marconi Receiver Type 226B c. 1920 Marconi International Marine Communication Co. Ltd. England Teak, chromium, plastic?, ebonite. 40124
View Record Lamps For Large Switchboard Type 95 1920s Unknown England Glass, brass, assorted metals. 40261
View Record Signal Receiver Type 57A Dated 1959 Marconi Instruments Ltd. England Steel, plastic, bakelite, glass, assorted metals. 40275
View Record Replica Of Parabolic Receiver For Marconi's Original Beam System 1920s/1930s Marconi's Wireless Telegraph Co. Ltd. London Wood, glass, copper, ebonite, assorted metals. 40344
View Record Mullard Television Valve Type PL504 With Carton 20th Century Mullard. Britain Glass, steel, assorted metals. 40357
View Record Mullard Wecovalve Radio Valve Peanut Type c. 1920 Mullard Radio Valve Co. Ltd. England Glass, steel, plastic?, assorted metals. 40365
View Record Exhibition Medal Exposition Universelle Et Internationale Dated 1935 Bonnetain. Brussels Gilt metal 40508
View Record Three-Position Switch Early 20th Century Griffin. London Mahogany, brass, ebonite, celluloid. 40839
View Record Brimar Radio Valve Type 50CD6G Mid 20th Century Brimar. England Glass, steel, plastic?, assorted metals. 41092
View Record 'Marconi' Auto-Alarm Receiver Type 332 c.1920 Marconi's Wireless Telegraph Co. Ltd. London Teak, glass, nickel, celluloid?, bakelite?, ebonite. 41271
View Record Medal Enrico Silvani Dated 1927 G. Romagnoli. Unknown Bronze 41328
View Record Marconi Long Wave Panel Type 229B c. 1920 Marconi International Marine Communication Co. Ltd. England Teak, chromium, bakelite?, ebonite. 41345
View Record Radio Valve Type 6N7G Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 41408
View Record Tuning Condenser c. 1907 Unknown Italy Brass, steel?, ebonite. 41634
View Record Fleming Valve c. 1905 Ediswan. London Copper, glass, brass, assorted metals. 41677
View Record Precision Measuring Instrument With Case Early 20th Century Cambridge Scientific Co. Ltd. Cambridge, England Ebonite, brass, baize, mahogany. 41846
View Record Seven-Valve Receiver 1920 Marconi Scientific Instrument Co. Ltd. London Teak, ebonite, bakelite?, steel. 41936
View Record Ken-Rad Radio Tube Type 12SC7 With Carton Mid 20th Century Ken-Rad Tube & Lamp Corporation. Owensboro, Kentucky, USA Plastic?, steel, assorted metals. 42016
View Record Morse Key Type 971 20th Century Marconi Company Britain Enamel, ebonite, plastic, steel. 42110
View Record Medal Roerich Museum Dated 1929 Henry Dropsy. USA Bronze 42576
View Record Radio-Special Micro Radio Valve Type E6 20th Century Unknown Unknown Glass, bakelite?, steel, assorted metals. 42700
View Record Discharger Early 20th Century Unknown Unknown Steel, brass, cast iron. 42997
View Record Small Multiple Discharger Early 20th Century Unknown Unknown Brass, ebonite. 43387
View Record Tapped Inductance Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, copper, ebonite. 43561
View Record Ebonite Partition Insulator Early 20th Century Unknown Unknown Ebonite, copper?, brass. 43603
View Record Franklin Master Oscillator c. 1930 Marconi's Wireless Telegraph Co. Ltd. England Steel, ebonite, bakelite, mahogany?, copper. 43735
View Record Marconi-Osram Radio Valve Type DER c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 43964
View Record Tuning Condenser Early 20th Century Unknown Unknown Brass, ebonite, assorted metals. 44153
View Record Variometer And Sliding Capacitor Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Teak, copper, ebonite, nickel, steel. 44318
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 44487
View Record Replica Morse Key Late 20th Century Unknown Unknown Teak, plastic?, brass. 44566
View Record Short Wave Tuner & Amplifier No. 17 c. 1915 Robert W. Paul. London Mahogany, ebonite, bakelite?, brass. 44893
View Record 'Megger' Resistance Meter Early 20th Century Evershead & Vignoles Ltd. London Teak, glass, steel?, brass, bakelite, assorted metals. 45250
View Record Instruction Manual For Communications Receiver Model 910/1 Mid 20th Century Stratton & Co. Ltd. Birmingham Paper 45899
View Record Marconi Radio Valve Type Q c. 1918 Ediswan. London Glass, steel, assorted metals. 45902
View Record 'Marconi' Crystal Wavemeter Type MC2 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Nickel, steel, glass, ebonite, bakelite, teak. 46042
View Record Marconi Bronze Bust Dated 1920 Claire Sheridan. England Bronze, marble. 46043
View Record Telephone Relay Early 20th Century Unknown Britain Mahogany, brass, nickel. 46067
View Record Company Seal Embosser Eastnor Electric Company Ltd 20th Century Unknown Britain Steel, nickel, cooper, baize 46281
View Record 'Marconi' 1˝KW Quenched Spark Gap Transmitter Type QG c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, steel, iron, nickel, porcelain, copper, assorted metals. 46329
View Record Marconi Radio Valve Type MT1 Early 20th Century Marconi-Osram Valve Co. Ltd. London Glass, nickel, assorted metals. 46376
View Record Marconi Radio Valve Type DEHL210 20th Century Marconi-Osram Valves. England Glass, steel, bakelite?, assorted metals. 46377
View Record Tilting Board c. 1899 Guglielmo Marconi. England Iron?, wood. 46382
View Record Short Wave Receiver Type CM294C Dated 1917 Marconi's Wireless Telegraph Co. of America. USA Ebonite, mahogany?, brass, nickel, bakelite, copper, aluminium?, steel. 46600
View Record Assorted Radio Valves 20th Century Unknown Unknown Glass, steel, brass, assorted metals. 46605
View Record Short Distance Wireless Telephone Set Type TT2 c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Teak, ebonite, bakelite, glass, brass, assorted metals. 46879
View Record Marconi Kryha Cipher Machine c. 1922 Marconiphone Co. Ltd. England Steel?, assorted metals, glass, nickel. 46995
View Record Marconi Aerial Tuning Inductance Coil 1910 Marconi's Wireless Telegraph Co. Ltd. England Copper, nickel, teak?, brass. 47154
View Record National Union Radio Tube Type 50L6GT With Carton c. 1941 National Union. New Jersey, USA Glass, plastic?, steel, assorted metals. 47236
View Record Mobile Television Camera Type BD624C With Electronic Viewfinder Type BD625F Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. London Steel, bakelite, assorted metals. 47261
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 47321
View Record Morse Key Type 100A Early 20th Century Marconi International Marine Communication Co. Ltd. Britain Nickel, mahogany, ebonite, steel. 47410
View Record Lord Kelvin's Multicellular Voltmeter 1920s Kelvin Bottomley & Baird Ltd. Britain Teak, glass, steel, bakelite, ebonite, brass, iron. 47607
View Record Ebonite Partition Insulator Early 20th Century Unknown Unknown Brass, ebonite. 47690
View Record 'Marconi' Amplifier Type GA2 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Teak, leather, steel, assorted metals. 47978
View Record RCA Radiotron Radio Tube Type 6C6 With Carton 20th Century RCA. USA Glass, steel, plastic?, assorted metals. 48010
View Record Walnut Side Table c. 1930 Unknown Unknown Walnut, brass. 48312
View Record Tuning Condenser With Capacitor Box c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Teak, wood, ebonite, bakelite, celluloid, nickel, plywood. 48535
View Record Radio Valve Type P2 20th Century Unknown Unknown Glass, bakelite?, steel, assorted metals. 48561
View Record Large Tuning Condenser c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Brass, glass, ebonite, teak, assorted metals. 48642
View Record Marconi Radio Valve Type MT1 c. 1919 Marconi-Osram Valve Co. Ltd. London Glass, nickel, assorted metals. 48681
View Record Radio Valve Type 5Z4G Mid 20th Century Unknown Britain Glass, steel, plastic?, assorted metals. 48685
View Record Radio Valve Type 6V6G Mid 20th Century Mullard. England Glass, plastic?, steel, assorted metals. 48716
View Record Marconi-Osram Radio Valve Type DER c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, steel, plastic?, brass?, assorted metals. 48922
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 49234
View Record Send/Receive Switch Type 103A Early 20th Century Marconi International Marine Communication Co. Ltd. London Teak, brass, steel, nickel. 49244
View Record 'Marconi' Wavemeter Type MP7 Early 20th Century Marconi 's Wireless Telegraph Co. Ltd. London Carborundum, paper, wood, plastic, ebonite, steel 49422
View Record Frame Aerial For Marconiphone Receiver Type 61 c. 1928 Marconiphone Co. Ltd. England Mahogany, steel, copper, bakelite. 49429
View Record Marconi Radio Valve Type S625 c. 1928 Marconi-Osram Valve Co. Ltd. England Glass, plastic?, steel, assorted metals. 49486
View Record Large Wave-Shortening Condenser With Case Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Mahongany, jute?, ebonite, steel, brass. 49571
View Record Large Marine Charging Switchboard Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Ebonite?, metal alloy, glass, brass, assorted metals. 49739
View Record Marconi Radio Valve Type V24 c. 1919 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 49744
View Record Marconi Wavemeter Type MC1 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Brass, bakelite, glass, metal?, plastic. 49948
View Record Marconi-Type Radio Valve 1920s/1930s Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 50000
View Record Marconiphone Type V2A c. 1923 Marconi's Wireless Telegraph Co. Ltd. England Mahogany, celluloid, ebonite, bakelite, nickel, steel, glass, assorted metals. 50144
View Record Portrait of Marconi 20th Century S. Tushingham London Watercolour, paper, glass, wood, brass. 50421
View Record Wireless Telegraphy Notice Mid 20th Century Unknown Britain Mahogany, glass, paper. 50523
View Record Pillbox With Spare Coherer Parts c. 1902 Unknown Unknown Assorted metals, crystal, cardboard, cotton wool. 50538
View Record Instruction Booklet For Aircraft Wireless Telephone Transmitter Type AD1 c. 1921 Sanders, Phillips & Co. Ltd. London Paper. 50711
View Record Siemens & Halske Experimental Radio Valve c. 1917 Siemens & Halske. Germany Glass, bakelite?, steel, assorted metals. 50748
View Record Generator Propellor Early 20th Century Unknown Unknown Steel, mahogany. 51047
View Record Small Buzzer Key With Base Early 20th Century Unknown Unknown Mahogany, brass, copper, plastic. 51297
View Record Assorted Early Coherer-Related Letters Early 20th Century Unknown Unknown Paper 51910
View Record 'Marconi' Wavemeter Type No 2 c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Teak, glass, steel, ebonite, leather, assorted metals. 52068
View Record Large Main Morse Key Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Mahogany, brass, metal alloy, ebonite. 53026
View Record Triangular Base Early 20th Century Unknown Unknown Brass, iron, baize. 53033
View Record Two-Way Morse Key 1900s Siemens Bros. & Co. London Brass, ebonite, steel 53048
View Record Early Coherer c. 1902 Unknown Unknown Glass, copper?, assorted metals. 53061
View Record Interrupter Type 144 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Cast iron, nickel, teak. 53329
View Record Radio Valve Type VU120A Mid 20th Century Unknown Unknown Glass, plastic?, steel, assorted metals. 53371
View Record Quenched Spark Disc Unit 20th Century Unknown Unknown Iron, nickel, ebonite, assorted metals. 53392
View Record Marconi's Parabolic Transmitter c. 1896 Guglielmo Marconi. England Wood, copper, ebonite, steel?, brass. 53586
View Record Precision Measuring Instrument With Case Mid 20th Century Cambridge Scientific Co. Ltd. Cambridge, England Ebonite, brass, baize, mahogany. 53614
View Record Exhibition Medal Esposizione Internazionale Dated 1956 Giannino. Italy Gilt metal. 53696
View Record 'Marconi' Direction Finder Type 11F c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Teak, ebonite, glass, nickel, plastic?, assorted metals. 54065
View Record Large Iolanda Switchboard Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Ebonite, glass, copper, plastic?, steel?, brass, unidentified material. 54296
View Record Switch And Lamp Type 94 Early 20th Century Unknown Unknown Teak?, brass, glass, porcelain?, metal. 54481
View Record 'Melba' Telephone Microphone No C100L Dated 1920 Marconi Company. England Mahogany, brass, ebonite, cloth, nickel. 54651
View Record Terminal Early 20th Century Unknown Unknown Ebonite, brass?, steel. 54685
View Record Magneto-Electric Machine Late 19th Century Unknown Unknown Boxwood?, steel?, brass, velvet. 54945
View Record Marconi Newton Constant-Speed Windmill 20Y Mark III c. 1926 Unknown Unknown Aluminium. 54960
View Record Myers Dry Battery Radio Tube With Carton c. 1924 E. B. Myers Co. Ltd. Canada Glass, bakelite, steel, assorted metals. 55098
View Record Walnut Armchair c. 1930 Unknown Unknown Walnut, leather. 55254
View Record Cylindrical Reflecting Vertical Galvanometer c. 1925 H. Tinsley & Co. London Brass, glass, copper, bakelite. 55299
View Record Company Seal Embosser Oriental Tube Company 20th Century Unknown Britain Steel, iron. 55328
View Record Early Coherer No 217 c. 1899 Unknown Unknown Glass, copper, nickel, silver, assorted metals. 55585
View Record Civilian Gentleman's Ceremonial Sword c. 1902 J. B. Johnstone. London Steel, leather. 55702
View Record Ohmmeter Early 1920s Cambridge & Paul Instrument Co. Ltd. England Teak, brass, copper, nickel, ebonite, bakelite. 56269
View Record Republic Radio Tube Type 6F5G With Carton 20th Century Republic Radio Manfacturing Corporation. New Jersey, USA Plastic?, glass, steel, assorted metals 56270
View Record Wireless Telegraphy Notice Mid 20th Century Unknown Britain Mahogany, glass, paper. 56300
View Record Forward Spark 'B' Wavemeter No. 2006 c. 1918 War Department Signals Flying Corps. Britain Steel, brass, bakelite?, teak, carborundum. 56341
View Record Proof Print of Marconi c. 1914 G. B. Black London Paper, plastic, cork. 56351
View Record Gray Magnetic Relay Key c. 1910 Marconi's Wireless Telegraph Co. Ltd. London Teak, iron?, ebonite? wood, metal alloy, silver. 56506
View Record 'Marconi' Wavemeter 20th Century Marconi's Wireless Telegraph Co. Ltd. London Boxwood, steel, bakelite?, leather, ebonite. 56547
View Record RCA Radiotron Radio Tube Type 6J7 With Carton Dated 1943 RCA. Philadelphia, USA Plastic?, steel, assorted metals. 56677
View Record RCA Radiotron Cunningham Radio Tube Type 5Z3 20th Century RCA. USA Glass, ribbon, steel, plastic?, assorted metals. 56681
View Record Marconi Commemorative Plaque Dated 1911 D. Sodini. Italy Brass, steel. 56721
View Record Sykes Microphone 1923 Sykes. England Paper, nickel?, steel, cast iron. 56738
View Record Ship's Bridge Telephone Early 20th Century Unknown Unknown Mahogany?, nickel, bakelite?, plastic, assorted metals. 57185
View Record RCA Radiotron Radio Tube Type 6D6 With Carton 20th Century RCA. New Jersey, USA Plastic?, steel, glass, assorted metals. 57337
View Record Osram Radio Valve Type P2 20th Century Osram. England Glass, bakelite?, steel, assorted metals. 57431
View Record Early Coherer c. 1899 Unknown France Glass, copper, nickel, silver, assorted metals. 57633
View Record Large Iolanda Transformer With Case Early 20th Century Unknown Unknown Mahogany, metal alloy, brass, copper, wood. 57720
View Record Potentiometer For Marconi Five-Valve Receiver 1922 Marconi Scientific Instrument Co. Ltd. London Bakelite?, copper, brass?, steel. 57736
View Record Marconiphone Universal Baby Crystal Receiver c. 1924 Marconiphone Co. Ltd. England Plastic, galena, nickel, steel, bakelite. 58056
View Record Ship's Bridge Telephone Early 20th Century Unknown None Mahogany?, nickel, bakelite?, copper, plastic, assorted metals. 58568
View Record Marconiphone Two-Valve Receiver Type V2A c. 1924 Marconiphone Co. Ltd. England Mahogany, celluloid, ebonite, bakelite, nickel, steel, glass, assorted metals. 58602
View Record Large Main Condenser With Case Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Wood, jute, brass, iron. 58903
View Record RCA Radiotron Radio Tube Type 6B7 With Carton 20th Century RCA. USA Glass, plastic?, steel, assorted metals. 58967
View Record Osram-GEC Radio Valve Type R4 c. 1916 Osram G.E.C. England Teak?, glass, brass, tungsten, assorted metals. 59017
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 59257
View Record Precision Instrument Model EGM2 Mid 20th Century Cambridge Instrument Co. Ltd. Cambridge, England Brass, iron, assorted metals. 59269
View Record 'Marconi Otophone' 1923 Marconi's Wireless Telegraph Co. Ltd. London Leather, celluloid, mahogany, plastic?, bakelite, glass, nickel. 59451
View Record Multiple Oscillator Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Celluloid, ebonite, steel?, brass. 59526
View Record 'Marconi' Lifeboat Transmitter Type 241A c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Teak, glass, steel, plastic?, bakelite, assorted metals. 59677
View Record STC Radio Tube Type 6J5G Mid 20th Century Standard Telephones and Cables Ltd. (STC). England Glass, plastic?, steel, assorted metals. 59723
View Record B T-H Plaque 20th Century Unknown Britain Cast iron, paint. 59770
View Record Replica Of Parabolic Transmitter For Marconi's Original Beam System 1920s/1930s Marconi's Wireless Telegraph Co. Ltd. England Wood, copper, brass, steel?, ebonite. 59943
View Record Marconi Telegraph Communication Chart c. 1922 Marconi International Marine Communication Co. Ltd. London Wood, glass, paper. 59984
View Record Marconi Radio Valve Type V24 c. 1918 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 60590
View Record RCA Radiotron Radio Tube Type 6D6 With Carton 20th Century RCA. New Jersey, USA Plastic?, steel, glass, assorted metals. 60662
View Record Portable Valve Transmitter 1919 Marconi's Wireless Telegraph Co. Ltd. London Brass, nickel, teak, bakelite?, paper. 61008
View Record Small Coupled Two-Way Switch Early 20th Century Unknown Unknown Steel, brass, iron?, bakelite?, mahogany?, ebonite. 61022
View Record Single-Turn Primary Coil Early 20th Century Unknown Unknown Wood, brass. 61290
View Record Magneto-Electric Machine Late 19th Century Unknown Unknown Boxwood?, steel?, brass, velvet. 61523
View Record RCA Radiotron Cunningham Radio Tube Type 6D6 With Carton 20th Century RCA. New Jersey, USA Plastic?, steel, glass, assorted metals. 61674
View Record Trembler Coil c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Teak, nickel, ebonite?, steel. 61771
View Record RCA Radiotron Acorn Radio Tube Type VT121 With Carton Mid 20th Century RCA. New Jersey, USA Glass, steel, assorted metals. 61791
View Record Marconi Five-Valve Receiver 1922 Marconi Scientific Instrument Co. Ltd. London Teak, nickel, ebonite?, copper, bakelite?, glass. 62304
View Record RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 62344
View Record Marconi Radio Valve Type DE3C c. 1924 Marconi-Osram Valves. London Glass, bakelite, steel, tungsten, assorted metals. 62393
View Record Company Seal Embosser Elliot Flight Automation Ltd 20th Century Unknown Britain Steel, wood, brass, baize. 62415
View Record 'Marconi' Ammeter 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel?, brass, copper?, nickel. 62660
View Record Lead-Acid Accumulator Early 20th Century Unknown Unknown Teak, leather?, brass. 62812
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 62884
View Record Early Coherer c. 1902 Unknown Unknown Glass, elastic, copper?, steel, assorted metals. 62930
View Record Marconi Crystal Receiver Type 16 1916 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, teak, bakelite, brass, steel?, copper. 63794
View Record Brimar Radio Valve Type 6V6GT 1940s Brimar. England Glass, plastic?, steel, assorted metals. 64011
View Record 120 Ohm Resistance Coil Early 20th Century Unknown Unknown Teak, steel, wax, assorted metals. 64043
View Record Bell Telephone Microphone c. 1923 Unknown England Ebonite, cast brass, steel?, nickel. 64147
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 64286
View Record Company Seal Embosser Firth Cleveland Instruments Ltd 20th Century Unknown Britain Steel, nickel, wood. 64400
View Record Tuned Circuit Transmitter c. 1900 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, plastic, celluloid, brass, glass, steel. 64464
View Record RCA Radiotron Radio Tube Type 6C6 With Carton 20th Century RCA. New Jersey, USA Glass, steel, plastic?, assorted metals. 64468
View Record Porcelain Insulators 20th Century Unknown Unknown Porcelain, brass, steel?, ebonite. 64661
View Record Marconi-Osram Radio Valve Type DET 1A 20th Century Marconi-Osram Valve Co. Ltd. London Glass, nickel-plated, brass, plastic?, assorted metals. 64933
View Record Rogers Radio Tube Type VR56 Mid 20th Century Rogers Canada. Canada Glass, steel, plastic?, assorted metals. 64947
View Record Trembler Coil c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Teak, bakelite, steel, nickel. 64976
View Record Rotary Spark Discharger c. 1906 Unknown Unknown Steel, brass, cast-iron, 64999
View Record Stud Field Regulating Rheostat Early 20th Century Electric Construction Co. Ltd. Wolverhampton, England Brass, steel, iron, metal alloys 65352
View Record Alexandra Palace Mast 1936 Marconi's Wireless Telegraph Co. Ltd. Britain Iron, assorted metals, oak?. 65804
View Record Large Fixed-Gap Discharger With Case Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Teak, brass, lead?, metal alloy, sand?, ebonite?, steel. 65806
View Record Portrait of Marconi 1914 Gustave Muranyi Unknown Oil, canvas, wood, brass, paper, cotton? 65827
View Record 'Marconi' Direction Finder Type DFM2 c. 1927 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, ebonite, glass, bakelite, celluloid, steel. 65922
View Record Voltmeter With Case Early 20th Century Unknown Britain Oak, brass, glass, celluloid, paper, assorted metals. 65935
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Brass, ebonite, celluloid. 66117
View Record 4 Volt Fleming Valve c. 1905 Royal Ediswan. London Teak?, glass, ebonite, metal alloy, nickel, assorted metals. 67148
View Record Fleming Valve c. 1905 Ediswan. London Copper, glass, brass, assorted metals. 67162
View Record Company Seal Embosser Robtron Controls Ltd 20th Century Jordan & Sons Ltd. London Steel, nickel, baize. 67172
View Record RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 67628
View Record Marconi Crystal Receiver Type 31C 1910 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, brass, mahogany?, bakelite. 67687
View Record Righi Oscillator 1896 Augusto Righi. Bologna, Italy Brass, ebonite, mahogany. 67799
View Record Coherer Receiver 1902 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, steel. 67916
View Record Marconi Radio Valve Type FE2 c. 1922 Marconi's Wireless Telegraph Co. Ltd. London Glass, nickel?, assorted metals. 68373
View Record Receiver Type R1155A c. 1940 Air Ministry. Unknown Aluminium, bakelite?, perspex?, steel. 68465
View Record Low Frequency Iron Core Inductance In Wooden Box Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Iron, brass, teak. 68721
View Record Siemens & Halske Radio Valve Type RE87 20th Century Siemens & Halske. Germany Glass, steel, brass, bakelite?, assorted metals. 69068
View Record BBC-Marconi Ribbon Microphone Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. London Copper, aluminium, bakelite?, assorted metals. 69070
View Record Mullard Radio Valve Type EF37A Mid 20th Century Mullard. England Glass, steel, plastic?, assorted metals. 69132
View Record Marconi Aerial Tuning Inductance Coil 1910 Marconi's Wireless Telegraph Co. Ltd. England Copper, nickel, teak?, brass. 69155
View Record RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 69398
View Record Telephone Arc Transmitter 1910 Marconi's Wireless Telegraph Co. Ltd. London Ebonised wood, bakelite, mica, brass, teak?, assorted metals, wood 69632
View Record 'Marconi' Tuning Fork Type BS10 20th Century Marconi's Wireless Telegraph Co. Ltd. London Brass, copper, nickel, steel, iron. 69685
View Record Precision Instrument Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Bakelite, glass, brass, copper, assorted metal, iron` 69707
View Record Newton Induction Coil c. 1899 Newton & Co. London Mahogany, brass, ebonite, wax, paper, celluloid. 69748
View Record Company Seal Embosser J.W. Flower & Company Ltd 20th Century Unknown Britain Steel, wood, iron?, baize. 69851
View Record Crystal Valve Receiver c. 1910 Marconi's Wireless Telegraph Co. Ltd. London Teak, ebonite, brass, bakelite, copper, metal. 69868
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 69910
View Record Small Tuning Condenser c. 1916 Marconi's Wireless Telegrap Co. Ltd. England Mahogany?, ebonite, bakelite, celluloid, brass. 69944
View Record Giant Radio Valve 1910s GEC. England Glass, polymer, brass, plastic?, nickel. 70075
View Record Marconi Radio Valve Type DE6 c. 1925 Marconi-Osram Valves. England Glass, bakelite, brass?, assorted metals. 70143
View Record Marconi Radio Valve Type Q c. 1919 Ediswan. London Glass, steel, assorted metals. 70145
View Record 'Long Tom' Aerial Tuning Inductance Coil c. 1900 Marconi's Wireless Telegraph Co. Ltd. Unknown Copper?, wood, softwood, brass. 70198
View Record Weston Standard Cell Type D402B 20th Century Muirhead & Co. Ltd. Britain Bakelite, steel, plastic. 70200
View Record Marconi Plastic Bust 20th Century Unknown Unknown Plastic, brass. 70226
View Record Radio Valve Type ATP4 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 70312
View Record RCA Radiotron Cunningham Radio Tube 5Z4 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 70529
View Record Two High Frequency Chokes In Mounted Cases Early 20th Century Unknown Unknown Mahogany, porcelain, copper, teak. 70536
View Record Morse Key Early 20th Century Elliot Brothers (London) Ltd. London Teak, bakelite?, brass. 70589
View Record Replica Righi Oscillator Late 20th Century Unknown Unknown Brass, ebonite?, plastic?, mahogany. 70590
View Record Replica Grasshopper Send-Receive Morse Key Late 20th Century Unknown Unknown Brass, plastic?, mahogany. 70649
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 70668
View Record Spare Wires 20th Century Unknown Unknown Plastic, brass?, steel. 70800
View Record Marconi Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 70906
View Record Telephone Transformer Type 191A Early 20th Century Marconi International Marine Communication Co. Ltd. England Hardwood, ebonite, steel. 71080
View Record Marconi Watercolour c. 1906 Leslie Ward. England Watercolours, wood, glass, paper. 71104
View Record Morse Tape Inker c. 1900 Marconi's Wireless Telegraph Co. Ltd. England Brass, mahogany, paper. 71246
View Record Rotary Spark Discharger Early 20th Century Marconi's Wirelss Telegraph Co. Ltd. London Steel, brass, cast iron. 71249
View Record Radio Valve Type AR8 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71310
View Record Small Morse Key Early 20th Century Unknown Unknown Steel, bakelite. 71452
View Record Marconi Five-Valve Receiver 1922 Marconi Scientific Instrument Co. Ltd. London Teak, ebonite?, bakelite?, copper. 71494
View Record RCA Radiotron Radio Tube Type 6D6 20th Century RCA. USA Plastic?, steel, glass, assorted metals. 71527
View Record Radio Valve Type VR112 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71648
View Record Replica Memorial Plaque Of South WellFleet Station (USA) Late 20th Century Unknown USA Cast metal. 71856
View Record Large Company Seal Embosser Chamberlain & Hookham Ltd 20th Century Unknown Britain Steel, wood. 71971
View Record Empty Case Of Forward Spark 'B' Wavemeter No. 2001 c. 1918 War Department Signals Flying Corps. Britain Teak. 71985
View Record Early Coherer c. 1899 Unknown England Glass, copper, nickel, silver, assorted metals. 72143
View Record Call Sign 20th Century Unknown Unknown Mahogany, plastic, metal. 72238
View Record Bone Coherer Support Rod c. 1902 Unknown Unknown Ivory, assorted metal components. 72278
View Record RCA Radiotron Radio Tube Type 6C8G With Carton 20th Century RCA. USA Plastic?, glass, steel, assorted metals. 72382
View Record Capacitor Early 20th Century W.G. Pye & Co. Cambridge, England Teak?, plastic?, nickel, ebonite. 72410
View Record Assorted Spare Parts For Radio Receiver Type BC342N 1940s Chicago Transformer Corporation. USA Glass, brass, steel, bakelite, assorted metals. 72568
View Record High Frequency Sliding Inductance Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Brass, ebonite, mahogany. 72720
View Record RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 72723
View Record Marconi Operator's Watch c. 1910 Unknown Switzerland Enamel, nickel, glass. 72754
View Record Ship's Bridge Telephone Early 20th Century Unknown Unknown Mahogany?, nickel, bakelite?, copper, plastic, assorted metals. 72842
View Record Shunt Regulator Type O 20th Century Unknown Unknown Iron, bakelite?, brass. 72885
View Record Exhibition Medal Exposition of Electricity And Serious Industry Dated 1899 Unknown Italy Aluminium 72905
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel. 73031
View Record Fama Radio Valve Type R c. 1916 Fama. Holland Glass, brass, bakelite?, assorted metals. 73073
View Record Frame Aerial For Marconiphone Receiver Type 61 c. 1928 Marconiphone Co. Ltd. England Mahogany, steel, copper, bakelite. 73080
View Record Company Seal Embosser W.W. Buckley & Son Ltd 20th Century H. Howes & Co. Ltd. London Steel, cooper, wood. 73461
View Record Earth Arrester Plate Early 20th Century Unknown Unknown Brass, copper. 73816
View Record Marconi Radio Valve Type Q c. 1918 Ediswan. London Glass, steel, assorted metals. 74162
View Record Signal Hall Kite c. 1901 G.C. Spencer & Sons. London Linen 74328
View Record Marconi's Sword-Stick c. 1900 Unknown Unknown Cane, gilt-metal, steel, turquoise. 74444
View Record Cover For Multiple Tuner c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Mahogany, brass, glass. 74506
View Record Cylindrical Reflecting Vertical Galvanometer Early 1920s Cambridge & Paul Instrument Co. Ltd. England Iron?, glass, copper, brass. 74683
View Record Marconi Radio Valve Type DEQ c. 1923 Marconi-Osram Valves. England Brass, glass, assorted metals. 74920
View Record Marconi Radio Valve Type LF2 20th Century Marconi's Valves. Britain Glass, plastic?, steel, assorted metals. 74966
View Record Marconiphone Receiver Type P17B c. 1950 Marconi Company. England Plastic, chromium, nickel, glass?, leather. 75181
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass. 75237
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 75263
View Record 'Marconi' Direction Finder Type 11F c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Teak, ebonite, glass, nickel, plastic?, assorted metals. 75339
View Record Company Seal Embosser Switchgear & Cowans Ltd 20th Century Art? Right & Rattray Ltd. Manchester Steel, copper?, iron, mahogany. 75359
View Record Company Seal Embosser Walsall Conduits Group Ltd 20th Century Jordan & Sons Ltd. London Steel, wood, brass?, cooper 75653
View Record Company Seal Embosser GEC-Elliot Computer Software Ltd 20th Century Unknown Britain Steel, wood, brass, baize. 75823
View Record Three-Turn Primary Coil Early 20th Century Unknown Unknown Wood, brass. 75930
View Record Magnetic Detector Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, ebonite, bakelite, iron. 75969
View Record Experimental Two-Valve Set c. 1916 Unknown Unknown Ebonite, teak, brass. 76048
View Record Marconi Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 76426
View Record Company Seal Embosser Elliot Ltd 20th Century Unknown Britain Steel, wood, brass, baize. 76469
View Record Marconi Note Magifier Type 227B c. 1920 Marconi International Marine Communication Co. Ltd. England Teak, chromium, bakelite?, ebonite. 76594
View Record Radio Valve Type ARTP2 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 76654
View Record Large Aerial Tuning Inductance With Case Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Mahogany, ebonite, brass. 76739
View Record Two Ebonite Tube Insulators Early 20th Century Unknown Unknown Ebonite. 76742
View Record Hivac Radio Valve Type CV1052 Mid 20th Century Hivac. England Glass, steel, plastic?, assorted metals. 76996
View Record RCA Radiotron Cunningham Radio Tube Type 6L7 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 76997
View Record Marconi Radio Valve Type U33 20th Century Marconi Wireless Telegraph Co. Ltd. England Glass, steel, bakelite?, assorted metals. 77017
View Record Siemens & Halske Radio Valve Type RE87 20th Century Siemens & Halske. Germany Glass, steel, brass, bakelite?, assorted metals. 77413
View Record 12 Volt Fleming Valve c. 1905 Royal Ediswan. London Glass, brass?, assorted metals. 77499
View Record Civilian Gentleman's Ceremonial Cocked Hat c. 1902 J. B. Johnstone. London Cloth, steel. 78080
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 78432
View Record Townsend Wavemeter c.1918 Marconi's Wireless Telegraph Co. Ltd. London Steel, bakelite?, teak, plastic, cardboard. 78507
View Record Candlestick Microphone c. 1927 Sterling Telephone & Electric Co. Ltd. London Bakelite, steel, plastic, assorted metals. 78582
View Record Leclanche Cell Early 20th Century General Electric Co. Ltd. USA Glass, earthenware?, steel. 78623
View Record Radio Receiver Type BC342N 1940s Unknown Unknown Steel, bakelite, glass, nickel, assorted metals. 78655
View Record Marconi Bellini-Tosi Direction Finder c. 1916 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, bakelite, ebonite, steel?, copper. 78859
View Record Replica Righi Oscillator Late 20th Century Unknown Unknown Brass, ebonite?, plastic?, mahogany. 79026
View Record Transmitter Type AD87B c. 1940 Marconi's Wireless Telegraph Co. Ltd. England Steel, plastic, glass, bakelite, iron. 79145
View Record Three Port Circulator 20th Century Marconi's Wireless Telegraph Co. Ltd. England Steel, metal. 79157
View Record Grasshopper Send-Receive Morse Key c. 1899 Wireless Telegraph & Signal Company Limited England Brass, ebonite, mahogany. 79280
View Record Osram Radio Valve Type CM8 20th Century Osram. England Glass, steel, bakelite?, assorted metals. 79293
View Record Assorted Copper Busbars And Ebonite Insulators Early 20th Century Unknown Unknown Copper, metal alloy?, ebonite. 79425
View Record Shunt Regulator Type OA 20th Century Unknown Unknown Brass, wood?, copper, iron. 79427
View Record Mazda Radio Valve Type PY33 With Carton 1960s Mazda. England Glass, steel, plastic?, assorted metals. 79516
View Record Marconi Sykes Microphone c. 1923 Marconi's Wireless Telegraph Co. Ltd. London Iron, ebonite, brass, nickel. 79721
View Record Marconi Radio Valve Type U10 20th Century Marconi-Osram Valves. London Glass, steel, plastic, assorted metals. 79785
View Record Gecophone Crystal Set c. 1921 GEC. Unknown Mahogany, bakelite?, ebonite, nickel, brass, steel 80012
View Record Marconi Radio Valve Type D42 20th Century Marconiphone Co. Ltd. England Glass, steel, bakelite?, assorted metals. 80037
View Record RCA Radiotron Radio Tube Type VR54 20th Century RCA. USA Plastic?, steel, assorted metals. 80165
View Record Marconi-Osram Radio Valve Type DER 1920s Marconi-Osram Valve Co. Ltd. London Glass, steel, brass?, plastic?, assorted metals. 80189
View Record Receiver Type R1155A c. 1942 Air Ministry. Unknown Aluminium, bakelite?, perspex?, steel. 80256
View Record Aircraft Wireless Receiver c. 1921 Marconi's Wireless Telegraph Co. Lt.d London Teak, nickel, ebonite, bakelite, brass, celluloid, assorted metals. 80281
View Record Zaerix Electronic Valve Type KTW61 Mid 20th Century Z & I Aero Services Ltd. London Glass, steel, plastic?, assorted metals. 80385
View Record Hytron Radio Tube Type E1148 With Carton Dated 1944 Hytron Corporation. Massachusetts, USA Mica, plastic?, glass, steel, assorted metals. 80500
View Record Fleming Valve c. 1889 Prof. J.A. Fleming. England Glass, nickel, steel, ebonite, wood. 80572
View Record National Union Radio Tube Type 35Z5GT With Carton c. 1942 National Union. USA Glass, plastic, steel, assorted metals. 80623
View Record Osram Radio Valve Type R c. 1918 Osram. England Glass, tungsten, brass?, steel, assorted metals. 80773
View Record Cluster Of Six Small Glass Tubes c. 1902 Unknown Unknown Glass, elastic, steel, assorted metals. 80963
View Record 18-Inch Induction Coil 1898 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, ebonite, copper, ivory?, steel. 81193
View Record Ken-Rad Radio Tube Type 6SN7GT Mid 20th Century Ken-Rad. USA Glass, plastic?, steel, assorted metals. 81227
View Record Aircraft Wireless Telephone Transmitter Type AD1 1921 Marconi's Wireless Telegraph Co. Ltd. England Wood, linen, steel, bakelite, ebonite, brass, glass, assorted metals. 81229
View Record Marconi Receiver CR100 Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. England Steel, plastic, nickel, bakelite, perspex, assorted metals. 81277
View Record Marconi Radio Valve Type Q c. 1918 Ediswan. London Glass, steel, assorted metals. 81565
View Record Walnut Kneehole Desk c. 1935 Unknown Unknown Walnut, brass. 82016
View Record Marconi-Osram Radio Valve Type R c. 1925 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 82041
View Record RCA Radiotron Radio Tube Type 6D6 20th Century RCA. USA Plastic?, steel, glass, assorted metals. 82120
View Record Rogers Radio Tube Type VR56 Mid 20th Century Rogers Canada. Canada Glass, steel, plastic?, assorted metals. 82126
View Record 'Marconi' Auto-Alarm Morse Key Type 316A c. 1920 Marconi Company. England Steel, ebonite?, bakelite?, metal. 82360
View Record Brass-Tipped Bone Stylus c. 1902 Unknown Unknown Ivory, brass, assorted metals. 82611
View Record Marconi Radio Valve Type V24 1920s Marconi-Osram Valves. London Glass, steel, assorted metals. 83077
View Record Mullard Radio Valve Type 2D4A Mid 1930s Mullard. Britain Glass, plastic?, steel, assorted metals. 83305
View Record Dario Radio Valve Micro Special Mid 20th Century Dario. France Glass, plastic?, steel, assorted metals. 83471
View Record Marconi Radio Valve Type DEV c. 1923 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 83921
View Record Morse Key Type 365 20th Century Marconi International Marine Communication Co. Ltd. London Steel, enamel, brass, nickel, ebonite. 83986
View Record Multiple Oscillator Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Ebonite, steel?, brass. 84014
View Record Triple Crystal Detector Early 20th Century Unknown Unknown Brass, copper, ebonite. 84133
View Record Marconi-Osram Radio Valve Type MPT4 Late 1920s Marconi-Osram Valve Co. Ltd. London Glass, plastic?, steel, assorted metals. 84752
View Record Company Seal Embosser GEC-Elliot Automation Ltd 20th Century Unknown Britain Nickel, iron?, steel, baize. 84767
View Record Philips Radio Valve Type R 1920s Philips. Holland Glass, steel, bakelite?, brass?, tungsten, assorted metals. 84869
View Record RCA Radiotron Radio Tube Type 6D6 With Carton 20th Century RCA. New Jersey, USA Plastic?, steel, glass, assorted metals. 84925
View Record Large Cylindrical Leyden Jar 1900 Unknown Unknown Glass, teak?, brass. 85146
View Record Marconi-Osram Radio Valve Type R c. 1923 Marconi-Osram Valve Co. Ltd. London Glass, nickel, plastic?, brass?, assorted metals. 85569
View Record Experimental Fleming Valve c. 1889 Prof. J.A. Fleming. London Glass, nickel, steel, ebonite, wood. 85593
View Record Short Wave Receiver Type 372 Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. London Metal, plastic?, glass. 85745
View Record Instruction Booklets For Marconi Wavemeters c. 1919 Sanders, Phillips & Co. Ltd. London Paper. 86206
View Record Marconi's Coherer Receiver 1896 Guglielmo Marconi. England Steel, teak, brass, glass, mahogany?, ivory, assorted metals. 86390
View Record 4 Volt Experimental Fleming Oscillation Valve 1904 Ediswan. London Wood, glass, steel?, brass. 86405
View Record BBC Radio Crystals With Tin Early 20th Century BBC Crystal Ltd. Britain Mica?, tin. 86416
View Record Mazda Radio Tube Type AR8 c. 1938 Mazda. England Glass, plastic?, steel, assorted metals. 86462
View Record Tungsram Radio Valve Type P43t-38 With Carton 20th Century Tungsram. France Glass, halogen, steel, ceramic?, copper?, plastic?, assorted metals. 86475
View Record Silvertown Condensor Marked 1918 Silvertown. USA Brass, ebonite, iron?, teak. 86740
View Record Morse Key c. 1900 Marconi's Wireless Telegraph Co. Ltd. England Brass, ebonite, mahagony. 86892
View Record Tuned Field Transmitter 1907 Marconi's Wireless Telegraph Co. Ltd. England Brass, mahogany, glass, ebonite. 87142
View Record Marconi Radio Valve 1920s/1930s Marconiphone Co. Ltd. England Glass, steel, plastic?, assorted metals. 87176
View Record Ink-Writer c. 1900 General Post Office. England Mahogany, brass, glass, paper. 87203
View Record Triple X-Stopper Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Ebonite, brass, mahogany, metal alloy. 87224
View Record 'Marconi' Tuning Fork 20th Century Marconi's Wireless Telegraph Co. Ltd. London Brass, copper, nickel, steel, iron. 87284
View Record Bone Coherer Support Rod c. 1900 Marconi's Wireless Telegraph Co. Ltd. England Ivory, nickel?, copper, assorted metals. 87538
View Record Coil-Type Testing Buzzer With Case Early 20th Century Unknown Unknown Wood, brass, copper, fibre, ebonite. 87609
View Record Coil For Receiver Type R1155A c. 1940 Air Ministry. Unknown Iron, bakelite?, steel. 87758
View Record Marconi Radio Valve Type LP2 1930s Marconi-Osram Valves. England Glass, steel, bakelite, assorted metals. 88183
View Record Company Seal Embosser Marconi Television Company Ltd 20th Century Unknown Britain Steel, wood, cooper. 88195
View Record Empty Case Of Forward Spark 'B' Wavemeter No. 1360 c. 1918 War Department Signals Flying Corps. Britain Teak 88505
View Record Instruction Booklet for Marconi Kryha Cipher Machine c. 1922 Marconi Company. London Paper 88541
View Record Marconi Emblem Plaque 20th Century Marconi Company. England Bronze, paint. 88561
View Record Marconi Induction Coil Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Mahogany, ebonite, plastic, brass, ivory?, copper 88737
View Record Marconi Radio Valve Type DE6 c. 1925 Marconi-Osram Valves. London Glass, bakelite, brass?, assorted metals. 88794
View Record Early Coherer c. 1899 Unknown Unknown Glass, copper, nickel, silver, assorted metals. 88920
View Record RCA Radiotron Radio Tube 42 With Carton 20th Century RCA. USA Glass, steel, plastic?, assorted metals. 89266
View Record 12 Volt Fleming Valve c. 1905 Ediswan. London Mahogany?, glass, ebonite, metal alloy, nickel, assorted metals. 89342
View Record Small Morse Key Early 20th Century Unknown Unknown Steel, plastic?, nickel, iron, copper. 89483
View Record Reproduction Photograph Of Dame Melba 20th Century Unknown England Cardboard, photographic paper. 89558
View Record Telephone Jigger Box c. 1916 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, plastic?, cooper. 89862
View Record 12 Volt Fleming Valve c. 1905 Ediswan. London Wood, baize, brass?, nickel, glass, ebonite. 89981
View Record Marconiphone Two-Valve Receiver Type V2A c. 1924 Marconiphone Co. Ltd. England Mahogany, celluloid, ebonite, bakelite, nickel, steel, assorted metals. 90029
View Record Aircraft Direction Finder Receiver Type AD16 c. 1928 Marconi's Wireless Telegraph Co. Ltd. London Wood, cloth, bakelite, ebonite, glass, celluloid 90152
View Record Carborundum Detector Early 20th Century Unknown Unknown Ebonite, nickel. 90595
View Record Marconi Radio Valve Type V24 1920s Marconi Osram Valves. London Glass, steel, assorted metals. 90635
View Record Stud Motor Starter Early 20th Century Electric Construction Co. Ltd. Wolverhampton, England Brass, copper, iron, steel, metal alloys. 90897
View Record Audion Radio Valve c. 1907 Lee De Forest. USA Glass, assorted metals. 90974
View Record Walnut Wardrobe c. 1930 Unknown Unknown Walnut, brass, glass, metal. 91156
View Record Case For Coherer Receiver c. 1902 Marconi's Wireless Telegraph Co. Ltd. London Steel, brass. 91438
View Record Company Seal Embosser Betram Thomas Ltd 20th Century Jordan & Sons Ltd. London Wood, steel, cooper, brass, metal. 91470
View Record Radio Valve Type CV1342 1950s Unknown Britain Glass, plastic?, steel, assorted metals. 91546
View Record Righi Oscillator 20th Century Marconi's Wireless Telegraph Co. Ltd. London Plastic, celluloid, mahogany, brass, ebonite, bakelite 91607
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 91673
View Record RCA Radiotron Radio Tube Type 80 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 91686
View Record Double-Pole Single-Throw Switch Early 20th Century Unknown England Ebonite, wood, teak?, steel, brass, copper alloy. 91708
View Record Gulstad Relay Early 20th Century Elliot Brothers (London) Ltd. London Metal, brass, glass, nickel. 91761
View Record Toothed Disc For Rotary Spark Discharger c. 1906 Unknown Unknown Brass 91762
View Record Balloon Envelope Radio Valve 20th Century Unknown Unknown Glass, steel, bakelite, assorted metals. 92020
View Record Marconi Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 92047
View Record Marconi Bronze Bust 1920 Claire Sheridan. England Bronze, marble. 92061
View Record Call Sign 20th Century Unknown Unknown Mahogany, plastic, metal. 92097
View Record Main Starter Switch Early 20th Century Unknown Unknown Iron, brass, copper, celluloid?, bakelite?, wood. 92107
View Record Townsend Wavemeter Dated 1918 Marconi's Wireless Telegraph Co. Ltd London Bakelite?, teak, paper/cardboard?, plastic, ebonite. 92109
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 92559
View Record Walnut Safe Cabinet c. 1930 Unknown Unknown Walnut, brass, steel. 92745
View Record Marconi Radio Valve Type FE2 c. 1922 Marconi-Osram Valve Co. Ltd. London Glass, nickel?, assorted metals. 92775
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, bakelite?, assorted metals. 92814
View Record Marconi Crystal Receiver A Type RB3 1922 Marconi's Wireless Telegraph Co. Ltd. England Ebonite, bakelite, steel, nickel, brass, paper, assorted metals. 93260
View Record Exhibition Medal Franco-British Exhibition Dated 1908 F. Bowcher. Birmingham Gilt silver. 93608
View Record American-Type Radio Tube 20th Century Unknown USA Glass, brass, plastic?, assorted metals. 93609
View Record 4 Volt Fleming Valve c. 1905 Royal Ediswan. London Brass, glass, assorted metals. 93660
View Record RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton Mid 20th Century RCA. New Jersey, USA Plastic?, steel, assorted metals. 93797
View Record Mullard Radio Valve Type PY33 1960s Mullard. Britain Glass, steel, plastic?, assorted metals. 93858
View Record Small Ohmmeter Early 1920s Cambridge & Paul Instrument Co. Ltd. England Teak, brass, copper, ebonite, bakelite. 93933
View Record Experimental Two-Valve Set c. 1916 Unknown Unknown Ebonite, teak, brass. 94035
View Record 1901 Transatlantic Billi Condenser c. 1901 Unknown Unknown Copper, waxed paper. 94060
View Record British-Style Radio Valve 20th Century Unknown Britain Glass, bakelite, nickel, steel, assorted metals. 94143
View Record Newton Induction Coil 1897 Newton & Co. London Mahogany, brass, ivory?, celluloid, ebonite. 94316
View Record 'Marconi' Universal Aircraft Telegraph Transmitter/Receiver Type AD6D c. 1928 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, bakelite, steel, ebonite, glass, assorted metals. 94461
View Record Marconi Radio Valve Type R c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Glass, nickel, steel?, tungsten, assorted metals. 94475
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 94536
View Record Portrait of Marconi Dated 1912 A Chevalier Taylor London Oil, canvas, wood, plaster, cork, brass, paper, steel, nylon? 94575
View Record Replica Morse Key Late 20th Century Unknown Unknown Teak, plastic?, brass. 94821
View Record Onwood's Patent Ohmmeter Early 20th Century Gambrell Brothers Ltd. London Teak?, glass, nickel, brass, ebonite, assorted metals. 95036
View Record Morse Key Type 971 20th Century Marconi Company. Britain Enamel, ebonite, plastic, steel. 95560
View Record GEC Bakelite Radio Receiver Mid 20th Century General Electric Co. Ltd. England Hardened glass?, bakelite 95767
View Record Generator Propellor Early 20th Century Unknown Unknown Mahogany. 95808
View Record 'Marconi' Mercury Phone Card Late 20th Century TRT/FTC Communications Inc. Britain Plastic. 95936
View Record Carton For Marconi Valve Type GTIC Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. England Paper 96026
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass, bakelite. 96057
View Record Lapel Pin National Institute Of Inventors 20th Century Unknown Unknown Gilt metal. 96207
View Record Siemens Radio Valve Type LD2 c. 1945 Siemens. Germany Steel, glass, assorted metals. 96292
View Record 1901 Transatlantic Self-Restoring Coherer c. 1901 Lieutenant Luigi Solari. Italy Glass, ebonite, brass, mercury, iron/carbon. 96386
View Record Ohmmeter Early 1920s Cambridge & Paul Instrument Co. Ltd. England Teak, brass, copper, nickel, ebonite, bakelite. 96442
View Record Variometer c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, rope, porcelain, mahogany, brass, bakelite. 96466
View Record Marconi Reproduction Photograph 20th Century J. Beuyann. Unknown Photographic print. 96591
View Record Osram-GEC Radio Valve Type R4 1917 Osram-GEC. England Teak?, glass, copper?, tungsten, assorted metals. 96640
View Record 1901 Transatlantic Receiver 1901 Collier-Marr Telephone & Electrical Manufacturing Co. Ltd. Manchester Brass, ebonite, iron. 96661
View Record Facsimile Of Daily Sketch Dated 1912 E. Hulton & Co., Limited. England Paper. 96891
View Record Mullard Radio Valve Type ECC35 20th Century Mullard. Britain Glass, plastic?, steel, assorted metals. 96920
View Record Morse Twin-Contact Key 20th Century Unknown Britain Ebonite, bakelite, glass, nickel?, brass. 96935
View Record 75th Anniversary Commemorative Cup 1978 Ceragraphics Panorama Studios. Devon, England China, paint, gold. 96983
View Record Precision Instrument Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Teak, glass, bakelite, brass, iron, assorted metals. 97073
View Record Remote-Control Switch Early 20th Century Unknown Unknown Teak, steel, cord, brass, copper. 97148
View Record Marconiphone Six-Valve Receiver Type 61 c. 1928 Marconiphone Co. Ltd. London Mahogany, bakelite, steel, glass, copper. 97219
View Record Tungsram Radio Valve Type RV200/600 Mid 20th Century Tungsram. England Glass, steel, plastic?, assorted metals. 97232
View Record Coil Condensor Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Brass?, wood. 97470
View Record All-Wave Super 6 Radiogram 1937 GEC. England Walnut, glass, plastic, nylon?, brass, assorted metals. 97710
View Record Tuning Condenser c. 1915 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass. 98095
View Record Marconi Crystal Receiver Type 31 c. 1910 Marconi's Wireless Telegraph Co. Ltd. London Bakelite?, ebonite, teak, brass, steel?, metal. 98216
View Record Communications Receiver Model 910/1 With Speaker Mid 20th Century Marconi International Marine Communication Co. Ltd. England Glass, bakelite, steel?, assorted metals. 98230
View Record Tuned Transmitter 1899 Guglielmo Marconi. England Wood, glass, brass, assorted metals. 98396
View Record Marconi-Reisz Microphone c. 1923 Marconi's Wireless Telegraph Co. Ltd. London Carbon?, ebonite, mica, marble. 98482
View Record Studio Photograph of H. Cuthbert Hall? Early 20th Century Elliott & Fry London Paper, oak?, brass, nylon? 98535
View Record Kilo-Volt Test Instrument 1920s/1930s Jack Worrell. England Mahogany?, brass, steel, porcelain, baize, glass, assorted metals. 98599
View Record Company Seal Embosser EA Automation Sevices Ltd 20th Century Unknown Unknown Steel, wood, baize. 98826
View Record 'Marconi' Wavemeter Instruction Leaflet c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Paper. 98851
View Record Early Small Coherer c. 1895 Guglielmo Marconi. Italy Glass, elastic, copper?, assorted metals. 98899
View Record RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton 20th Century RCA. New Jersey, USA Glass, plastic?, steel, assorted metals. 98935
View Record Case For Coherer Receiver 1905 Marconi's Wireless Telegraph Co. Ltd. England Steel 98971
View Record Marconi Crystal Receiver With Valve c. 1916 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, teak, bakelite, brass, steel?, copper. 99012
View Record Coherer Receiver Dated 1905 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, glass, ivory, ebonite, assorted metals. 99245
View Record Magnetic Detector 1907 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, ebonite, bakelite, iron. 99266
View Record Magnetic Key Relay Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London, England Teak, brass, steel, unknown material, wood. 99331
View Record Variable Resistance Switch For Aircraft Wireless Telephone Type AD2 c. 1920 Marconi's Wireless Telegraph Co. Ltd. England Plastic?, nickel, assorted metals. 99434
View Record Marconiphone Crystal Junior Receiver Type RB2 1922 Marconi's Wireless Telegraph Co. Ltd. Chelmsford, England Galena, carborundum, ebonite, nickel, celluloid, steel, bakelite, plastic? 99532
View Record De Forest Audiotron Radio Valve Early 20th Century De Forest. Unknown Copper?, glass, assorted metals. 99552
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 99640
View Record Morse Tape Inker c. 1900 Marconi's Wireless Telegraph Co. Ltd. London Brass, mahogany, paper. 99765

Previous Page  Next Page

Results per page:  20    50    100    200    All

Back to top