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Displaying 451 to 650 of 655 records
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| Heading | Date | Maker | Place | Materials | Inv Num | |
|---|---|---|---|---|---|---|
| View Record | S. E. Marchesi Marconi | 1931 | Sir Max Beerbohm | London | Paper, watercolour, plastic, metal, nylon? | 16862 |
| View Record | Portrait of Marconi | 20th Century | S. Tushingham | London | Watercolour, paper, glass, wood, brass. | 50421 |
| View Record | Studio Photograph of H. Cuthbert Hall? | Early 20th Century | Elliott & Fry | London | Paper, oak?, brass, nylon? | 98535 |
| View Record | Instruction Manual For Aircraft Wireless Telephone Type AD2 | c. 1920 | Sanders Phillips & Co. Ltd. | London | Paper | 38181 |
| 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 | Large Emergency Morse Key | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Brass, metal alloy, teak, ebonite. | 31025 |
| 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 | Magnetic Key Relay | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Teak, brass, steel, unknown material, wood. | 99331 |
| 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 | 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 | High Frequency Sliding Inductance | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Brass, ebonite, mahogany. | 72720 |
| 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 | Large Main Jigger With Case | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Mahogany?, ebonite, wood, brass. | 14809 |
| 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 | 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 Iolanda Switchboard | Early 20th Century | Marconi's Wireless Telegraph Co. Ltd. | London, England | Ebonite, glass, copper, plastic?, steel?, brass, unidentified material. | 54296 |
| 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 | Company Seal Embosser Switchgear & Cowans Ltd | 20th Century | Art? Right & Rattray Ltd. | Manchester | Steel, copper?, iron, mahogany. | 75359 |
| View Record | 1901 Transatlantic Receiver | 1901 | Collier-Marr Telephone & Electrical Manufacturing Co. Ltd. | Manchester | Brass, ebonite, iron. | 96661 |
| View Record | Raytheon Radio Tube Type 6H6G With Carton | Dated 1934 | Raytheon. | Massachusetts, USA | Glass, steel, plastic?, assorted metals. | 37614 |
| View Record | Hytron Radio Tube Type CV1759 With Carton | Dated 1944 | Hytron Corporation. | Massachusetts, USA | Steel, plastic?, glass, assorted metals. | 25098 |
| View Record | Hytron Radio Tube Type E1148 With Carton | Dated 1944 | Hytron Corporation. | Massachusetts, USA | Mica, plastic?, glass, steel, assorted metals. | 80500 |
| 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 | RCA Radiotron Acorn Radio Tube Type VT121 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Glass, steel, assorted metals. | 61791 |
| 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 | RCA Radiotron Cunningham Radio Tube 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 70529 |
| 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 | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 17167 |
| 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 | National Union Radio Tube Type 12SA7GT With Carton | c. 1942 | National Union. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 30961 |
| 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 | RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 30472 |
| 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 | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 78432 |
| 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 | RCA Radiotron Cunningham Radio Tube Type 6B7 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 20953 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 84925 |
| 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 | RCA Radiotron Cunningham Radio Tube Type 5Z3 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, ribbon, steel, plastic?, assorted metals. | 18078 |
| 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 | RCA Radiotron Cunningham Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 61674 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 60662 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 31810 |
| View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, steel, plastic?, assorted metals. | 64468 |
| View Record | RCA Radiotron Radio Tube Type 80 With Carton | 20th Century | RCA. | New Jersey, USA | Glass, plastic?, steel, assorted metals. | 91686 |
| View Record | RCA Radiotron Radio Tube Type 6D6 With Carton | 20th Century | RCA. | New Jersey, USA | Plastic?, steel, glass, assorted metals. | 57337 |
| 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 | RCA Radiotron Cunningham Radio Tube Type 5Z4 With Carton | Mid 20th Century | RCA. | New Jersey, USA | Plastic?, steel, assorted metals. | 93797 |
| 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 | Ship's Bridge Telephone | Early 20th Century | Unknown | None | Mahogany?, nickel, bakelite?, copper, plastic, assorted metals. | 58568 |
| 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 | RCA Radiotron Radio Tube Type 6J7 With Carton | Dated 1943 | RCA. | Philadelphia, USA | Plastic?, steel, assorted metals. | 56677 |
| View Record | Medal Portugese Marconi Company | Dated 1951 | Joao da Silva. | Portugal | Bronze | 14889 |
| View Record | Marconi Operator's Watch | c. 1910 | Unknown | Switzerland | Enamel, nickel, glass. | 72754 |
| View Record | Generator Propellor | Early 20th Century | Unknown | Unknown | Steel, mahogany. | 51047 |
| View Record | Generator Propellor | 20th Century | Marconi's Wireless Telegraph Co. Ltd. | Unknown | Laminated mahogany, brass. | 32068 |
| View Record | Small Multiple Discharger | Early 20th Century | Unknown | Unknown | Brass, ebonite. | 43387 |
| View Record | Generator Propellor | Early 20th Century | Unknown | Unknown | Mahogany. | 95808 |
| View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 70590 |
| View Record | Magneto-Electric Machine | Late 19th Century | Unknown | Unknown | Boxwood?, steel?, brass, velvet. | 61523 |
| View Record | Porcelain Insulators | 20th Century | Unknown | Unknown | Porcelain, brass, steel?, ebonite. | 64661 |
| View Record | Switch And Lamp Type 94 | Early 20th Century | Unknown | Unknown | Teak?, brass, glass, porcelain?, metal. | 54481 |
| View Record | Marconi Newton Constant-Speed Windmill 20Y Mark III | c. 1926 | Unknown | Unknown | Aluminium. | 54960 |
| View Record | Variable Pitch Generator Windmill | Early 20th Century | Unknown | Unknown | Metal alloy, iron. | 32380 |
| View Record | 'Long Tom' Aerial Tuning Inductance Coil | c. 1900 | Marconi's Wireless Telegraph Co. Ltd. | Unknown | Copper?, wood, softwood, brass. | 70198 |
| View Record | Experimental Two-Valve Set | c. 1916 | Unknown | Unknown | Ebonite, teak, brass. | 94035 |
| View Record | Experimental Two-Valve Set | c. 1916 | Unknown | Unknown | Ebonite, teak, brass. | 76048 |
| View Record | Cold Cathode Ray Tube | c. 1902 | Unknown | Unknown | Glass, mahogany, copper, metal. | 25358 |
| View Record | Three-Turn Primary Coil | Early 20th Century | Unknown | Unknown | Wood, brass. | 75930 |
| View Record | Experimental Billi Condenser | c. 1900 | Unknown | Unknown | Copper?, steel?, ebonite, brass, mahogany, plywood, bakelite, celluloid. | 24292 |
| View Record | Company Seal Embosser EA Automation Sevices Ltd | 20th Century | Unknown | Unknown | Steel, wood, baize. | 98826 |
| View Record | Company Seal Embosser Coastal Radio Ltd | 20th Century | Unknown | Unknown | Steel, wood, cooper, baize | 25157 |
| View Record | Large Cylindrical Leyden Jar | 1900 | Unknown | Unknown | Glass, teak?, brass. | 85146 |
| View Record | Shunt Regulator | 20th Century | Unknown | Unknown | Iron, bakelite?, brass. | 25048 |
| View Record | Shunt Regulator Type O | 20th Century | Unknown | Unknown | Iron, bakelite?, brass. | 72885 |
| View Record | Shunt Regulator Type OA | 20th Century | Unknown | Unknown | Brass, wood?, copper, iron. | 79427 |
| View Record | Aerial Lead-In Insulator | Early 20th Century | Unknown | Unknown | Earthenware, copper, iron. | 26677 |
| View Record | Coil For Receiver Type R1155A | c. 1940 | Air Ministry. | Unknown | Iron, bakelite?, steel. | 87758 |
| View Record | Direction-Finding Coil For Receiver Type R1155A | c. 1940 | Air Ministry. | Unknown | Iron, bakelite?, plastic?, steel. | 29505 |
| View Record | Receiver Type R1155A | c. 1940 | Air Ministry. | Unknown | Aluminium, bakelite?, perspex?, steel. | 68465 |
| View Record | Triple Crystal Detector | Early 20th Century | Unknown | Unknown | Brass, copper, ebonite. | 84133 |
| View Record | Graduated Swivelling Coils For Triple Crystal Detector | Early 20th Century | Unknown | Unknown | Copper, steel, tape. | 28254 |
| View Record | Aerial Lead-In Insulator | Early 20th Century | Unknown | Unknown | Earthenware, copper, iron. | 17338 |
| View Record | Lead-Acid Accumulator | Early 20th Century | Unknown | Unknown | Teak, leather?, brass. | 62812 |
| View Record | Receiver Type R1155A | c. 1942 | Air Ministry. | Unknown | Aluminium, bakelite?, perspex?, steel. | 80256 |
| View Record | Hirst Bronze Bust | Dated 1936 | S.H. Paulon. | Unknown | Bronze, marble. | 14884 |
| View Record | Bank Of Six Leyden Jar Condensers | 1900 | Unknown | Unknown | Glass, brass, mahogany, felt. | 17579 |
| View Record | Bank Of Six Leyden Jar Condensers | 1900 | Unknown | Unknown | Glass, brass, mahogany, teak?, felt. | 24931 |
| View Record | Lapel Pin National Institute Of Inventors | 20th Century | Unknown | Unknown | Gilt metal. | 96207 |
| View Record | Medal Institute Of Radio Engineers | c. 1922 | Sanford. | Unknown | Gold. | 12658 |
| View Record | Medal John Fritz | Dated 1922 | V. D. Brenner. | Unknown | Bronze | 35206 |
| View Record | Medal Enrico Silvani | Dated 1927 | G. Romagnoli. | Unknown | Bronze | 41328 |
| View Record | De Forest Audiotron Radio Valve | Early 20th Century | De Forest. | Unknown | Copper?, glass, assorted metals. | 99552 |
| View Record | Gecophone Crystal Set | c. 1921 | GEC. | Unknown | Mahogany, bakelite?, ebonite, nickel, brass, steel | 80012 |
| View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 21726 |
| View Record | Toothed Disc For Rotary Spark Discharger | c. 1906 | Unknown | Unknown | Brass | 91762 |
| View Record | Rotary Spark Discharger | c. 1906 | Unknown | Unknown | Steel, brass, cast-iron, | 64999 |
| View Record | Mullard Radio Valve Type ORA/B | c. 1922 | Mullard Radio Valve Co. | Unknown | Glass, rubber?, assorted metals. | 18833 |
| View Record | Replica Grasshopper Send-Receive Morse Key | Late 20th Century | Unknown | Unknown | Brass, plastic?, mahogany. | 70649 |
| View Record | Replica Morse Key | Late 20th Century | Unknown | Unknown | Teak, plastic?, brass. | 94821 |
| View Record | Replica Morse Key | Late 20th Century | Unknown | Unknown | Teak, plastic?, brass. | 44566 |
| View Record | Main Starter Switch | Early 20th Century | Unknown | Unknown | Iron, brass, copper, celluloid?, bakelite?, wood. | 39443 |
| View Record | Main Starter Switch | Early 20th Century | Unknown | Unknown | Iron, brass, copper, celluloid?, bakelite?, wood. | 92107 |
| View Record | Radio Valve Type VU120A | Mid 20th Century | Unknown | Unknown | Glass, plastic?, steel, assorted metals. | 53371 |
| View Record | Mazda Radio Valve Type CV6 With Carton | 20th Century | Mazda Company. | Unknown | Glass, plastic?, steel, assorted metals. | 38616 |
| View Record | Balloon Envelope Radio Valve | 20th Century | Unknown | Unknown | Glass, steel, bakelite, assorted metals. | 92020 |
| View Record | Balloon Envelope Radio Valve | Early 20th Century | Unknown | Unknown | Glass, steel, bakelite?, assorted metals. | 13172 |
| View Record | Radio-Special Micro Radio Valve Type E6 | 20th Century | Unknown | Unknown | Glass, bakelite?, steel, assorted metals. | 42700 |
| View Record | Radio Valve Type ML6C | Mid 20th Century | Unknown | Unknown | Glass, steel, ceramics, assorted metals. | 28855 |
| View Record | Assorted Radio Valves | 20th Century | Unknown | Unknown | Glass, steel, brass, assorted metals. | 46605 |
| View Record | Radio Valve Type P2 | 20th Century | Unknown | Unknown | Glass, bakelite?, steel, assorted metals. | 48561 |
| View Record | Metal Component Pair FT-162 For Radio | 20th Century | Unknown | Unknown | Iron?, steel, nickel. | 18465 |
| View Record | Marconi Plastic Bust | 20th Century | Unknown | Unknown | Plastic, brass. | 70226 |
| View Record | Single-Turn Primary Coil | Early 20th Century | Unknown | Unknown | Wood, brass. | 61290 |
| View Record | Tuning Condenser | Early 20th Century | Unknown | Unknown | Brass, ebonite, assorted metals. | 44153 |
| View Record | Replica Grasshopper Send-Receive Morse Key | 1970s | Unknown | Unknown | Brass, plastic?, mahogany. | 27753 |
| View Record | 1901 Transatlantic Billi Condenser | c. 1901 | Unknown | Unknown | Copper, waxed paper. | 94060 |
| View Record | 120 Ohm Resistance Coil | Early 20th Century | Unknown | Unknown | Teak, steel, wax, assorted metals. | 64043 |
| View Record | Small Morse Key | Early 20th Century | Unknown | Unknown | Steel, bakelite. | 71452 |
| View Record | Two Ebonite Tube Insulators | Early 20th Century | Unknown | Unknown | Ebonite. | 76742 |
| View Record | Small Morse Key | Early 20th Century | Unknown | Unknown | Steel, plastic?, nickel, iron, copper. | 89483 |
| View Record | Ship's Direction Finder | 1920s | Unknown | Unknown | Glass, plastic, bakelite, teak?, copper, assorted metals. | 35780 |
| View Record | Marconi's Sword-Stick | c. 1900 | Unknown | Unknown | Cane, gilt-metal, steel, turquoise. | 74444 |
| View Record | Remote-Control Switch | Early 20th Century | Unknown | Unknown | Teak, steel, cord, brass, copper. | 97148 |
| View Record | Ship's Bridge Telephone | Early 20th Century | Unknown | Unknown | Mahogany?, nickel, bakelite?, copper, plastic, assorted metals. | 72842 |
| View Record | Call Sign | 20th Century | Unknown | Unknown | Mahogany, plastic, metal. | 92097 |
| View Record | Call Sign | 20th Century | Unknown | Unknown | Mahogany, plastic, metal. | 72238 |
| View Record | Ship's Bridge Telephone | Early 20th Century | Unknown | Unknown | Mahogany?, nickel, bakelite?, plastic, assorted metals. | 57185 |
| View Record | Small Coupled Two-Way Switch | Early 20th Century | Unknown | Unknown | Steel, brass, iron?, bakelite?, mahogany?, ebonite. | 61022 |
| View Record | Carborundum Detector | Early 20th Century | Unknown | Unknown | Ebonite, nickel. | 90595 |
| View Record | Terminal | Early 20th Century | Unknown | Unknown | Ebonite, brass?, steel. | 54685 |
| View Record | Early Coherer | c. 1899 | Unknown | Unknown | Glass, copper, nickel, silver, assorted metals. | 17473 |
| View Record | Assorted Early Coherer-Related Letters | Early 20th Century | Unknown | Unknown | Paper | 51910 |
| View Record | Vertical Precision Instrument | Early 20th Century | Unknown | Unknown | Brass, paint, bronze, assorted metals. | 32039 |
| View Record | Triangular Base | Early 20th Century | Unknown | Unknown | Brass, iron, baize. | 53033 |
| View Record | Magneto-Electric Machine | Late 19th Century | Unknown | Unknown | Boxwood?, steel?, brass, velvet. | 54945 |
| View Record | Quenched Spark Disc Unit | 20th Century | Unknown | Unknown | Iron, nickel, ebonite, assorted metals. | 53392 |
| View Record | Quenched Spark Disc Unit | 20th Century | Unknown | Unknown | Iron, nickel, ebonite, assorted metals. | 19420 |
| View Record | Transmitter Tuner Type MC13 | c. 1930 | Unknown | Unknown | Steel, nickel, plastic, assorted metals. | 18269 |
| View Record | Early Experimental Coherer | c. 1902 | Unknown | Unknown | Glass, copper, cork, iron, assorted metals. | 19433 |
| View Record | Early Coherer | c. 1902 | Unknown | Unknown | Glass, copper?, assorted metals. | 53061 |
| View Record | Bone Coherer Support Rod | c. 1902 | Unknown | Unknown | Ivory, assorted metal components. | 72278 |
| View Record | Early Coherer | c. 1902 | Unknown | Unknown | Glass, elastic, copper?, steel, assorted metals. | 62930 |
| View Record | Brass-Tipped Bone Stylus | c. 1902 | Unknown | Unknown | Ivory, brass, assorted metals. | 82611 |
| View Record | Spare Wires | 20th Century | Unknown | Unknown | Plastic, brass?, steel. | 70800 |
| View Record | Replica Righi Oscillator | Late 20th Century | Unknown | Unknown | Brass, ebonite?, plastic?, mahogany. | 79026 |
| View Record | 'Cow's Tail' Insulator | Early 20th Century | Unknown | Unknown | Brass, wood, cable. | 15574 |
| View Record | Portrait of Marconi | 1914 | Gustave Muranyi | Unknown | Oil, canvas, wood, brass, paper, cotton? | 65827 |
| View Record | Walnut Armchair | c. 1930 | Unknown | Unknown | Walnut, leather. | 55254 |
| View Record | Walnut Wardrobe | c. 1930 | Unknown | Unknown | Walnut, brass, glass, metal. | 91156 |
| View Record | Walnut Side Table | c. 1930 | Unknown | Unknown | Walnut, brass. | 48312 |
| View Record | Walnut Kneehole Desk | c. 1935 | Unknown | Unknown | Walnut, brass. | 82016 |
| View Record | Cluster Of Six Small Glass Tubes | c. 1902 | Unknown | Unknown | Glass, elastic, steel, assorted metals. | 80963 |
| View Record | Pillbox With Spare Coherer Parts | c. 1902 | Unknown | Unknown | Assorted metals, crystal, cardboard, cotton wool. | 50538 |
| View Record | Marconi Reproduction Photograph | 20th Century | J. Beuyann. | Unknown | Photographic print. | 96591 |
| View Record | Discharger | Early 20th Century | Unknown | Unknown | Steel, brass, cast iron. | 42997 |
| View Record | Early Coherer No 217 | c. 1899 | Unknown | Unknown | Glass, copper, nickel, silver, assorted metals. | 55585 |
| View Record | Early Coherer | c. 1899 | Unknown | Unknown | Glass, copper, nickel, silver, assorted metals. | 88920 |
| View Record | Radio Receiver Type BC342N | 1940s | Unknown | Unknown | Steel, bakelite, glass, nickel, assorted metals. | 28392 |
| View Record | Ebonite Partition Insulator | Early 20th Century | Unknown | Unknown | Brass, ebonite. | 47690 |
| View Record | Walnut Safe Cabinet | c. 1930 | Unknown | Unknown | Walnut, brass, steel. | 92745 |
| View Record | Bust of T. L. Eckersley | Late 20th Century | K. Scott. | Unknown | Bronze, oak?, plaster, metal. | 31421 |
| View Record | Marconi Studio Photographic Portrait | 20th Century | Unknown | Unknown | Cardboard, photographic paper. | 34711 |
| View Record | Radio Receiver Type BC342N | 1940s | Unknown | Unknown | Steel, bakelite, glass, nickel, assorted metals. | 78655 |
| View Record | Two Mica Crystals | 20th Century | Unknown | Unknown | Mica, mahogany, baize. | 38233 |
| View Record | Pair Of Mounted Guard Lamps | Early 20th Century | Unknown | Unknown | Mahogany?, glass, copper, brass. | 24488 |
| View Record | Large Iolanda Transformer With Case | Early 20th Century | Unknown | Unknown | Mahogany, metal alloy, brass, copper, wood. | 57720 |
| View Record | Assorted Copper Busbars And Ebonite Insulators | Early 20th Century | Unknown | Unknown | Copper, metal alloy?, ebonite. | 79425 |
| View Record | Ebonite Partition Insulator | Early 20th Century | Unknown | Unknown | Ebonite, copper?, brass. | 43603 |
| View Record | Earth Arrester Plate | Early 20th Century | Unknown | Unknown | Brass, copper. | 73816 |
| View Record | Earth Arrester Plate | Early 20th Century | Unknown | Unknown | Brass, copper. | 31083 |
| View Record | Two Ribbed Wooden Pillar Insulators | Early 20th Century | Unknown | Unknown | Wood, brass. | 23387 |
| View Record | Coil-Type Testing Buzzer With Case | Early 20th Century | Unknown | Unknown | Wood, brass, copper, fibre, ebonite. | 87609 |
| View Record | Small Buzzer Key With Base | Early 20th Century | Unknown | Unknown | Mahogany, brass, copper, plastic. | 51297 |
| View Record | Two High Frequency Chokes In Mounted Cases | Early 20th Century | Unknown | Unknown | Mahogany, porcelain, copper, teak. | 70536 |
| View Record | Radio Call Sign | Early 20th Century | Unknown | Unknown | Mahogany, paint. | 20091 |
| 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 | Leclanche Cell | Early 20th Century | General Electric Co. Ltd. | USA | Glass, earthenware?, steel. | 78623 |
| View Record | Silvertown Condensor | Marked 1918 | Silvertown. | USA | Brass, ebonite, iron?, teak. | 86740 |
| View Record | Medal Roerich Museum | Dated 1929 | Henry Dropsy. | USA | Bronze | 42576 |
| View Record | Audion Radio Valve | c. 1907 | Lee De Forest. | USA | Glass, assorted metals. | 90974 |
| View Record | RCA Radiotron Radio Tube Type VR54 | 20th Century | RCA. | USA | Plastic?, steel, assorted metals. | 80165 |
| View Record | RCA Radiotron Radio Tube Type VR54 | 20th Century | RCA. | USA | Plastic?, steel, assorted metals. | 15408 |
| View Record | Ken-Rad Radio Tube Type 6SN7GT | Mid 20th Century | Ken-Rad. | USA | Glass, plastic?, steel, assorted metals. | 81227 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 6B7 | 20th Century | RCA. | USA | Glass, plastic?, steel, assorted metals. | 15130 |
| View Record | RCA Radiotron Cunningham Radio Tube Type 5Z3 | 20th Century | RCA. | USA | Glass, ribbon, steel, plastic?, assorted metals. | 56681 |
| View Record | Raytheon Radio Tube Type 6J7G | Mid 20th Century | Raytheon. | USA | Glass, steel, plastic?, assorted metals. | 39208 |
| View Record | RCA Radiotron Radio Tube 42 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 89266 |
| View Record | National Union Radio Tube Type 35Z5GT With Carton | c. 1942 | National Union. | USA | Glass, plastic, steel, assorted metals. | 80623 |
| View Record | RCA Radiotron Radio Tube Type 6C8G With Carton | 20th Century | RCA. | USA | Plastic?, glass, steel, assorted metals. | 72382 |
| View Record | RCA Radiotron Radio Tube Type 6B7 With Carton | 20th Century | RCA. | USA | Glass, plastic?, steel, assorted metals. | 58967 |
| View Record | RCA Radiotron Radio Tube Type 6D6 | 20th Century | RCA. | USA | Plastic?, steel, glass, assorted metals. | 82120 |
| View Record | RCA Radiotron Radio Tube Type 6D6 | 20th Century | RCA. | USA | Plastic?, steel, glass, assorted metals. | 71527 |
| View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 48010 |
| View Record | RCA Radiotron Radio Tube Type 6C6 With Carton | 20th Century | RCA. | USA | Glass, steel, plastic?, assorted metals. | 22269 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 92814 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, plastic?, assorted metals. | 93609 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 92559 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 31425 |
| View Record | American-Type Radio Tube | 20th Century | Unknown | USA | Glass, brass, bakelite?, assorted metals. | 36535 |