Search for all terms: Collection Group: Marconi Collection Page 1 of 695 records found. Displaying 25 50 100 200 at a time.Next Results > Records with Images(Followed by: text only records)1. Candlestick Microphone, by Sterling Company, London, c. 1927 2. Forward 'B' Spark Wavemeter No. 1339, by War Department, Britain,... 3. Marzi Microphone, by Marzi Company, Paris, 1910 4. Send/Receive Switch Type 103A, by Marconi Company, London,... 5. 'Marconi' Direction Finder Type DFM2, by Marconi Company, London,... 6. 'Marconi' Direction Finder Type DFM2, by Marconi Company, London,... 7. Marconi's Oil Righi Oscillator, by Augusto Righi, Bologna,... 8. G.E.C. Stencil, 20th Century 9. Condenser Microphone, by Edison Bell, London?, c. 1930 10. Glass Fragment from Air Raid Damage, London, 1917 11. Seal Stamp for GEC, Mid-20th Century 12. Macbeth-Jung Cipher Machine, by A. James Jung, London, c. 1916 13. Nameplate for English Electric, British, Mid-20th Century 14. Generator Propellor, Early 20th Century 15. 12 Volt Fleming Valve, by Ediswan, London, c. 1905 16. 4 Volt Fleming Valve, by Royal Ediswan, London, c. 1905 17. 4 Volt Experimental Fleming Oscillation Valve, by Ediswan,... 18. 12 Volt Fleming Valve, by Ediswan, London, c. 1905 19. Experimental Fleming Valve, by J.A. Fleming, English, c. 1889 20. Headphones from Magnetic Detector, by Marconi Company, London,... 21. Photograph (Reproduction) of Dame Nellie Melba at an Early... Text Only Records(Preceded by: records with image previews)22. Painting (Oil on Board) of Guglielmo Marconi, by Stanley T.... 23. Marconi Receiver Accessories 24. Part of Sykes Microphone, by Sykes, English, 1923 25. All-Wave Super 6 Radiogram, by GEC, English, 1937 Next Results >