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Displaying 101 to 300 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Tuned Field Transmitter 1907 Marconi's Wireless Telegraph Co. Ltd. England Brass, mahogany, glass, ebonite. 87142
View Record Marconi Bronze Bust 1920 Claire Sheridan. England Bronze, marble. 92061
View Record Marconi Bronze Bust Dated 1920 Claire Sheridan. England Bronze, marble. 46043
View Record Marconi Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 35245
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 15771
View Record Commemarative Plate c. 1903 W. Adams & Co. England Pottery 37493
View Record Franklin Master Oscillator c. 1930 Marconi's Wireless Telegraph Co. Ltd. England Steel, ebonite, bakelite, mahogany?, copper. 43735
View Record Trembler Coil c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Teak, bakelite, steel, nickel. 64976
View Record Trembler Coil c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Teak, nickel, ebonite?, steel. 61771
View Record Marconi Radio Valve Type DEQ c. 1923 Marconi-Osram Valves. England Brass, glass, assorted metals. 74920
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-Type Radio Valve 1920s/1930s Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 50000
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 Case For Coherer Receiver 1905 Marconi's Wireless Telegraph Co. Ltd. England Steel 98971
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 Osram Radio Valve Type R c. 1918 Osram. England Glass, tungsten, brass?, steel, assorted metals. 80773
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 44487
View Record Hivac Radio Valve Type CV1052 Mid 20th Century Hivac. England Glass, plastic?, steel, assorted metals. 28126
View Record Radio Valve Type VR112 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71648
View Record Radio Valve ARP12-Type Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 36764
View Record Radio Valve Type ATP4 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 15492
View Record Radio Valve Type AR8 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 71310
View Record Radio Valve Type 6N7G Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 41408
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 69910
View Record Radio Valve Type ARTP2 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 76654
View Record Brimar Radio Valve Type 50CD6G With Carton Mid 20th Century Brimar Ltd. England Glass, steel, plastic?, assorted metals. 34364
View Record Osram-GEC Radio Valve Type R4 1917 Osram-GEC. England Teak?, glass, copper?, tungsten, assorted metals. 96640
View Record Mazda Radio Tube Type AR8 c. 1938 Mazda. England Glass, plastic?, steel, assorted metals. 86462
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 Tungsram Radio Valve Type RV200/600 Mid 20th Century Tungsram. England Glass, steel, plastic?, assorted metals. 97232
View Record Brimar Radio Valve Type 6V6GT 1940s Brimar. England Glass, plastic?, steel, assorted metals. 64011
View Record Mazda Radio Valve Type PY33 With Carton 1960s Mazda England Glass, steel, plastic?, assorted metals. 26731
View Record Mullard Radio Valve Type EF37A Mid 20th Century Mullard. England Glass, steel, plastic?, assorted metals. 69132
View Record Radio Valve Type 6V6G Mid 20th Century Mullard. England Glass, plastic?, steel, assorted metals. 48716
View Record Brimar Radio Valve Type 50CD6G Mid 20th Century Brimar. England Glass, steel, plastic?, assorted metals. 41092
View Record Marconi Radio Valve Type DEQ c. 1923 Marconi-Osram Valves. England Glass, steel, assorted metals. 20655
View Record Marconi Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 70906
View Record Marconi Radio Valve Type V24 c. 1919 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 25217
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 Mazda Radio Valve Type PY33 With Carton 1960s Mazda. England Glass, steel, plastic?, assorted metals. 79516
View Record Carton For Marconi Valve Type GTIC Mid 20th Century Marconi's Wireless Telegraph Co. Ltd. England Paper 96026
View Record Brimar Radio Valve Type 6SN7GT Mid 20th Century Brimar. England Glass, steel, plastic?, assorted metals. 14188
View Record Hivac Radio Valve Type CV1052 Mid 20th Century Hivac. England Glass, steel, plastic?, assorted metals. 76996
View Record Radio Valve Type ATP4 Mid 20th Century Unknown England Glass, plastic?, steel, assorted metals. 70312
View Record Mullard Wecovalve Radio Valve Peanut Type c. 1920 Mullard Radio Valve Co. Ltd. England Glass, steel, plastic?, assorted metals 19239
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 Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 76426
View Record Marconi Radio Valve Type V24 c. 1918 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 25691
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel. 73031
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 29233
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 62884
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. 60590
View Record Marconi Radio Valve Type V24 c. 1919 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 49744
View Record Marconi Radio Valve Type S625 c. 1928 Marconi-Osram Valve Co. Ltd. England Glass, plastic?, steel, assorted metals. 49486
View Record Mullard Radio Valve Type PM4 1930s Mullard. England Glass, steel, bakelite, assorted metals. 21856
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 DEQ c. 1923 Marconi Valves. England Glass, steel, assorted metals. 29390
View Record Marconi Radio Valve Type LP2 1930s Marconi-Osram Valves. England Glass, steel, bakelite, assorted metals. 88183
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 64286
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 23157
View Record Radio Valve Type ARP12 c. 1939 Unknown England Glass, plastic?, steel, assorted metals. 91673
View Record Marconi Radio Valve Type DEHL210 20th Century Marconi-Osram Valves. England Glass, steel, bakelite?, assorted metals. 46377
View Record Marconi Radio Valve Type U33 20th Century Marconi Wireless Telegraph Co. Ltd. England Glass, steel, bakelite?, assorted metals. 77017
View Record Osram Radio Valve Type P2 20th Century Osram. England Glass, bakelite?, steel, assorted metals. 57431
View Record Marconi Radio Valve Type D42 20th Century Marconiphone Co. Ltd. England Glass, steel, bakelite?, assorted metals. 80037
View Record Osram Radio Valve Type CM8 20th Century Osram. England Glass, steel, bakelite?, assorted metals. 79293
View Record Cossor Radio Valve Type V10 20th Century Cossor. England Glass, steel, plastic?, oxide, assorted metals. 26034
View Record Mullard Wecovalve Radio Valve Peanut Type c. 1920 Mullard Radio Valve Co. Ltd. England Glass, steel, plastic?, assorted metals. 40365
View Record Marconi Radio Valve Type MH4 c. 1931 Marconi's Wireless Telegraph Co. Ltd. England Cooper, steel, plastic?, assorted metals. 20104
View Record Grasshopper Send-Receive Morse Key c. 1899 Wireless Telegraph & Signal Company Limited England Brass, ebonite, mahogany. 79280
View Record Morse Tape Inker c. 1900 Marconi's Wireless Telegraph Co. Ltd. England Brass, mahogany, paper. 71246
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 Assorted Components For T1154 And R1155A In Wooden Chest 1940s Unknown England Wood, steel, glass, canvas, assorted metals. 13044
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 75263
View Record Marconi Radio Valve Type DEV c. 1923 Marconi Valves. England Glass, steel, assorted metals. 94536
View Record Marconiphone Universal Baby Crystal Receiver c. 1924 Marconiphone Co. Ltd. England Plastic, galena, nickel, steel, bakelite. 58056
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Brass, ebonite, celluloid. 66117
View Record Tuning Condenser No 4 c. 1906 Marconi's Wireless Telegraph Co. Ltd. England Ebonite, brass, paper. 20696
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 Side-Lever Morse Key c. 1910 Marconi's Wireless Telegraph Co. Ltd. England Mahogany, ebonite, brass, bakelite. 12506
View Record Tuning Condenser c. 1907 Marconi's Wireless Telegraph Co. Ltd. England Ebonite, steel?, nickel. 28159
View Record Tuning Condenser c. 1915 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass. 98095
View Record Tuning Condenser c. 1915 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass. 18093
View Record Bell Telephone Microphone c. 1923 Unknown England Brass, ebonite, nickel. 35219
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass. 75237
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass, bakelite. 34701
View Record Three Port Circulator 20th Century Marconi's Wireless Telegraph Co. Ltd. England Steel, metal. 79157
View Record Giant Radio Valve 1910s GEC. England Glass, polymer, brass, plastic?, nickel. 70075
View Record Morse Key c. 1900 Marconi's Wireless Telegraph Co. Ltd. England Brass, ebonite, mahagony. 86892
View Record Tuned Transmitter 1899 Guglielmo Marconi. England Wood, glass, brass, assorted metals. 98396
View Record Bell Telephone Microphone c. 1923 Unknown England Ebonite, cast brass, steel?, nickel. 64147
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 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 Marconiphone Personal Receiver Type P17B c. 1950 Marconiphone Co. Ltd. England Plastic, chromium, nickel, glass?, leather. 33654
View Record Marconiphone Receiver Type P17B c. 1950 Marconi Company. England Plastic, chromium, nickel, glass?, leather. 75181
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 Marconiphone Type V2A c. 1923 Marconi's Wireless Telegraph Co. Ltd. England Mahogany, celluloid, ebonite, bakelite, nickel, steel, glass, assorted metals. 50144
View Record 'Marconi' Ammeter 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel?, brass, copper?, nickel. 62660
View Record Tuning Condenser c. 1916 Marconi's Wireless Telegraph Co. Ltd. England Teak, ebonite, celluloid, brass, bakelite. 96057
View Record Small Tuning Condenser c. 1916 Marconi's Wireless Telegrap Co. Ltd. England Mahogany?, ebonite, bakelite, celluloid, brass. 69944
View Record Early Coherer c. 1899 Unknown England Glass, copper, nickel, silver, assorted metals. 72143
View Record Bone Coherer Support Rod c. 1900 Marconi's Wireless Telegraph Co. Ltd. England Ivory, nickel?, copper, assorted metals. 87538
View Record Facsimile Of Daily Sketch Dated 1912 E. Hulton & Co., Limited. England Paper. 96891
View Record Reproduction Photograph Of Dame Melba 20th Century Unknown England Cardboard, photographic paper. 89558
View Record Lamps For Large Switchboard Type 95 1920s Unknown England Glass, brass, assorted metals. 40261
View Record Cylindrical Reflecting Vertical Galvanometer Early 1920s Cambridge & Paul Instrument Co. Ltd. England Iron?, glass, copper, brass. 74683
View Record Small Ohmmeter Early 1920s Cambridge & Paul Instrument Co. Ltd. England Teak, brass, copper, ebonite, bakelite. 93933
View Record Ohmmeter Early 1920s Cambridge & Paul Instrument Co. Ltd. England Teak, brass, copper, nickel, ebonite, bakelite. 56269
View Record Ohmmeter Early 1920s Cambridge & Paul Instrument Co. Ltd. England Teak, brass, copper, nickel, ebonite, bakelite. 96442
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 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 Marconi's Coherer Receiver 1896 Guglielmo Marconi. England Steel, teak, brass, glass, mahogany?, ivory, assorted metals. 86390
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 Aircraft Wireless Telephone Type AD2 c. 1920 Marconi's Wireless Telegraph Co. Ltd. England Linen, ebonite, glass, wood, plastic?, assorted metals. 12938
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 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 Fleming Valve c. 1889 Prof. J.A. Fleming. England Glass, nickel, steel, ebonite, wood. 80572
View Record Bradfield Leading-In Insulator No.1 1910 Marconi's Wireless Telegraph Co. Ltd. England Iron, ebonite. 13694
View Record Set Of Inductors Type TM1438 20th Century Marconi Instruments Ltd. England Wood, leather, steel, bakelite 23891
View Record All-Wave Super 6 Radiogram 1937 GEC. England Walnut, glass, plastic, nylon?, brass, assorted metals. 97710
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 Watercolour c. 1906 Leslie Ward. England Watercolours, wood, glass, paper. 71104
View Record Marconi's Parabolic Transmitter c. 1896 Guglielmo Marconi. England Wood, copper, ebonite, steel?, brass. 53586
View Record Marconi's Parabolic Receiver c. 1896 Guglielmo Marconi. England Wood, copper, nickel, glass, assorted metals. 31092
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 Kilo-Volt Test Instrument 1920s/1930s Jack Worrell. England Mahogany?, brass, steel, porcelain, baize, glass, assorted metals. 98599
View Record Image Orthicon Tube Mid 20th Century English Electric Valve Co. Ltd. England Glass, bakelite?, steel, nickel, assorted metals. 39508
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 'Melba' Telephone Microphone No C100L Dated 1920 Marconi Company. England Mahogany, brass, ebonite, cloth, nickel. 54651
View Record Sykes Microphone 1923 Sykes. England Paper, nickel?, steel, cast iron. 56738
View Record Signal Receiver Type 57A Dated 1959 Marconi Instruments Ltd. England Steel, plastic, bakelite, glass, assorted metals. 40275
View Record Tilting Board c. 1899 Guglielmo Marconi. England Iron?, wood. 46382
View Record Catalogue For Aircraft Wireless Receiver c. 1921 Marconi's Wireless Telegraph Co. Ltd. England Paper 32919
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 Dario Radio Valve Micro Special Mid 20th Century Dario. France Glass, plastic?, steel, assorted metals. 83471
View Record Bellini-Tosi Direction Finder 1907 E. Bellini & A. Tosi. France Walnut, brass, steel?, iron, bakelite, ebonite. 14937
View Record Marzi Microphone 1910 Marzi Company. France Wood, aluminium, steel. 27140
View Record Early Coherer c. 1899 Unknown France Glass, copper, nickel, silver, assorted metals. 57633
View Record Bellini-Tosi Radiogoniometer c. 1907 Bellini & Tosi. France Oak, brass, ebonite, metal. 37692
View Record Telefunken Radio Valve Type LD15 c. 1945 Telefunken. Germany Steel, glass, assorted metals. 14100
View Record Siemens Radio Valve Type LD2 c. 1945 Siemens. Germany Steel, glass, assorted metals. 96292
View Record Siemens & Halske Radio Valve Type RE87 20th Century Siemens & Halske. Germany Glass, steel, brass, bakelite?, assorted metals. 77413
View Record Siemens & Halske Experimental Radio Valve c. 1917 Siemens & Halske. Germany Glass, bakelite?, steel, assorted metals. 50748
View Record Siemens & Halske Radio Valve Type RE87 20th Century Siemens & Halske. Germany Glass, steel, brass, bakelite?, assorted metals. 69068
View Record Philips Radio Valve Type QQE02 With Separate Carton Late 20th Century Philips. Holland Glass, steel, assorted metals. 34480
View Record Fama Radio Valve Type R c. 1916 Fama. Holland Glass, brass, bakelite?, assorted metals. 73073
View Record Philips Radio Valve Type R 1920s Philips. Holland Glass, steel, bakelite?, brass?, tungsten, assorted metals. 84869
View Record Marconi Commemorative Plaque Dated 1911 D. Sodini. Italy Brass, steel. 56721
View Record Marconi Commemorative Plaque Dated 1912 Unknown Italy Brass 23050
View Record Exhibition Medal Exposition of Electricity And Serious Industry Dated 1899 Unknown Italy Aluminium 72905
View Record Exhibition Medal Exposition of Decorative and Modern Art Dated 1902 Unknown Italy Gilt metal 34377
View Record Exhibition Medal Esposizione Internazionale Dated 1956 Giannino. Italy Gilt metal. 53696
View Record Medal International Marconi Conference Dated 1951 Coffredo Edginelli? Italy Aluminium 34099
View Record Marconi Radio Valve Type 42A 20th Century Officine Marconi-Genova. Italy Glass, steel, plastic?, assorted metals. 19824
View Record 1901 Transatlantic Self-Restoring Coherer c. 1901 Lieutenant Luigi Solari. Italy Glass, ebonite, brass, mercury, iron/carbon. 96386
View Record Tuning Condenser c. 1907 Unknown Italy Brass, steel?, ebonite. 41634
View Record Early Small Coherer c. 1895 Guglielmo Marconi. Italy Glass, elastic, copper?, assorted metals. 98899
View Record Silver Table Lighter With Case Dated 1912 Alfred Foster. London Silver, bakelite?, marble, velvet, silk, leather. 35386
View Record Civilian Gentleman's Ceremonial Sword c. 1902 J. B. Johnstone. London Steel, leather. 55702
View Record Townsend Wavemeter c.1918 Marconi's Wireless Telegraph Co. Ltd. London Steel, bakelite?, teak, plastic, cardboard. 78507
View Record Townsend Wavemeter Dated 1918 Marconi's Wireless Telegraph Co. Ltd London Bakelite?, teak, paper/cardboard?, plastic, ebonite. 92109
View Record 'Marconi' Wavemeter 20th Century Marconi's Wireless Telegraph Co. Ltd. London Boxwood, steel, bakelite?, leather, ebonite. 56547
View Record Multiple Oscillator Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Celluloid, ebonite, steel?, brass. 59526
View Record Induction Coil For Tuned Field Transmitter 1907 Marconi's Wireless Telegraph Co. Ltd. London Brass, mahogany, ebonite. 30667
View Record Amplifier Type 91 c. 1918 Marconi's Wireless Telegraph Co. Ltd. London Teak, nickel, glass, steel? bakelite. 39440
View Record Righi Oscillator 20th Century Marconi's Wireless Telegraph Co. Ltd. London Plastic, celluloid, mahogany, brass, ebonite, bakelite 91607
View Record Direct Reading Portable Decremeter Dated 1909 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, leather, ebonite, bakelite. 28627
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 35970
View Record 'Marconi Otophone' 1923 Marconi's Wireless Telegraph Co. Ltd. London Leather, celluloid, mahogany, plastic?, bakelite, glass, nickel. 59451
View Record Send/Receive Switch Type 103A Early 20th Century Marconi International Marine Communication Co. Ltd. London Teak, brass, steel, nickel. 49244
View Record Triple X-Stopper Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Ebonite, brass, mahogany, metal alloy. 87224
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 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 Type MP7 Early 20th Century Marconi 's Wireless Telegraph Co. Ltd. London Carborundum, paper, wood, plastic, ebonite, steel 49422
View Record Telephone Jigger Box c. 1916 Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, plastic?, cooper. 89862
View Record Cylindrical Reflecting Vertical Galvanometer c. 1925 H. Tinsley & Co. London Brass, glass, copper, bakelite. 55299
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 Portable Aircraft Spark Transmitter 40W c. 1912 Marconi's Wireless Telegraphy Co. Ltd. London Teak, leather, ebonite, steel, bakelite?, brass. 19772
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 Case For Coherer Receiver c. 1902 Marconi's Wireless Telegraph Co. Ltd. London Steel, brass. 91438
View Record Interrupter Type 144 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Cast iron, nickel, teak. 53329
View Record 'Marconi' Amplifier Type GA2 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Teak, leather, steel, assorted metals. 47978
View Record Coherer Receiver 1902 Marconi's Wireless Telegraph Co. Ltd. London Mahogany, brass, steel. 67916
View Record Marconi-Reisz Microphone c. 1923 Marconi's Wireless Telegraph Co. Ltd. London Carbon?, ebonite, mica, marble. 98482
View Record Seven-Valve Receiver 1920 Marconi Scientific Instrument Co. Ltd. London Teak, ebonite, bakelite?, steel. 41936
View Record Magnetic Detector Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Teak, brass, steel, ebonite, nickel. 18119
View Record Marconiphone Two-Valve Receiver Type 21 1925 Marconiphone Co. Ltd. London Bakelite?, ebonite, glass, brass, mahogany, plastic? 18847
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 Short Wave Tuner & Amplifier No. 17 c. 1915 Robert W. Paul. London Mahogany, ebonite, bakelite?, brass. 44893
View Record Portable Valve Transmitter 1919 Marconi's Wireless Telegraph Co. Ltd. London Brass, nickel, teak, bakelite?, paper. 61008
View Record Large Tuning Condenser c. 1906 Marconi's Wireless Telegraph Co. Ltd. London Brass, glass, ebonite, teak, assorted metals. 48642
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 Precision Instrument Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Bakelite, glass, brass, copper, assorted metal, iron` 69707
View Record Marconi Crystal Receiver Type 31C 1910 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, nickel, mahogany?, bakelite. 21573
View Record Marconi Crystal Receiver Type 31C 1910 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, brass, mahogany?, bakelite. 67687
View Record Syntoniser Early 20th Century Marconi's Wireless Telegraph Co. Ltd. London Ebonite?, iron?, teak. 21593
View Record Drysdale-Tinsley Vibration Galvanometer 20th Century H. Tinsley & Co. London Brass, iron, glass, bakelite?, mahogany, plastic. 17033
View Record Company Seal Embosser Fan Manufacturing Company 20th Century Witherby & Co. Ltd. London Steel, baize. 20679

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