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Displaying 281 to 330 of 655 records

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Heading Date Maker Place Materials Inv Num
View Record Marconi Radio Valve Type MT1 c. 1919 Marconi-Osram Valve Co. Ltd. London Glass, nickel, assorted metals. 48681
View Record B T-H Plaque 20th Century Unknown Britain Cast iron, paint. 59770
View Record Instruction Booklets For Marconi Wavemeters c. 1919 Sanders, Phillips & Co. Ltd. London Paper. 86206
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 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 Morse Key Type 971 20th Century Marconi Company. Britain Enamel, ebonite, plastic, steel. 95560
View Record Telephone Transformer Type 191A Early 20th Century Marconi International Marine Communication Co. Ltd. England Hardwood, ebonite, steel. 71080
View Record Seven-Valve Receiver 1920 Marconi Scientific Instrument Co. Ltd. London Teak, ebonite, bakelite?, steel. 41936
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 Marconi Note Magifier Type 227B c. 1920 Marconi International Marine Communication Co. Ltd. England Teak, chromium, bakelite?, ebonite. 76594
View Record Drysdale-Tinsley Vibration Galvanometer 20th Century H. Tinsley & Co. London Brass, iron, glass, bakelite?, mahogany, plastic. 17033
View Record Marconi Receiver Type 226B c. 1920 Marconi International Marine Communication Co. Ltd. England Teak, chromium, plastic?, ebonite. 40124
View Record Marconi Long Wave Panel Type 229B c. 1920 Marconi International Marine Communication Co. Ltd. England Teak, chromium, bakelite?, ebonite. 41345
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 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 Rotating Multiple Stamp Holder 20th Century E.M.R. London Steel 40066
View Record Marconi Radio Valve Type V24 c. 1919 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 25217
View Record Marconi Radio Valve Type V24 c. 1919 Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 49744
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' Lifeboat Transmitter Type 241A c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Teak, glass, steel, plastic?, bakelite, assorted metals. 59677
View Record Tuning Condenser Early 20th Century Unknown Unknown Brass, ebonite, assorted metals. 44153
View Record Morse Key Type 971 20th Century Marconi Company Britain Enamel, ebonite, plastic, steel. 42110
View Record Morse Key Type 365 20th Century Marconi International Marine Communication Co. Ltd. London Steel, enamel, brass, nickel, ebonite. 83986
View Record Morse Twin-Contact Key 20th Century Unknown Britain Ebonite, bakelite, glass, nickel?, brass. 96935
View Record 'Marconi' Ammeter 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel?, brass, copper?, nickel. 62660
View Record Variometer c. 1920 Marconi's Wireless Telegraph Co. Ltd. London Ebonite, rope, porcelain, mahogany, brass, bakelite. 96466
View Record Marconi Radio Valve Type MT1 Early 20th Century Marconi-Osram Valve Co. Ltd. London Glass, nickel, assorted metals. 46376
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 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 'Melba' Telephone Microphone No C100L Dated 1920 Marconi Company. England Mahogany, brass, ebonite, cloth, nickel. 54651
View Record Large Iolanda Transformer With Case Early 20th Century Unknown Unknown Mahogany, metal alloy, brass, copper, wood. 57720
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 35970
View Record Marconi Radio Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 29519
View Record Medal Institute Of Radio Engineers c. 1922 Sanford. Unknown Gold. 12658
View Record Marconi Valve Type V24 Early 20th Century Marconi's Wireless Telegraph Co. Ltd. England Glass, steel, assorted metals. 35245
View Record Gecophone Crystal Set c. 1921 GEC. Unknown Mahogany, bakelite?, ebonite, nickel, brass, steel 80012
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 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 Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 47321
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 99640
View Record Marconi Radio Valve Type QX c. 1921 Marconi-Osram Valves. London Glass, steel, assorted metals. 31778
View Record Balloon Envelope Radio Valve Early 20th Century Unknown Unknown Glass, steel, bakelite?, assorted metals. 13172

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