Search for all terms: Material: ebonite Page 1 of 214 records found. Displaying 25 50 100 200 at a time.Next Results > Records with Images1. Six Porcelain Insulators and Aerial Lead-in, 20th Century2. Morse Key Type 971, by Marconi Company, Britain, 20th Century.3. Morse Key Type 100A, by Marconi Company, Britain, Early 20th...4. Morse Key Type 100A, by Marconi Company, Britain, Early 20th...5. Brownie Crystal Receiver No 2, by Brownie Wireless Company,...6. Direct Reading Portable Decremeter, by Marconi Company, London,...7. Righi Oscillator, by Marconi Company, London, 20th Century8. Amplifier Type 91, by Marconi Company, London, c. 19189. Induction Coil For Tuned Field Transmitter, by Marconi Company,...10. Short Wave Receiver Type CM294C, by Marconi Company, USA, 191711. Replica Righi Oscillator, Late 20th Century12. Multiple Oscillator, by Marconi Company, English, Early 20th...13. Multiple Oscillator, by Marconi Company, London, Early 20th...14. Small Multiple Discharger, Early 20th Century15. 'Marconi' Wavemeter, by Marconi Company, London, 20th Century16. Townsend Wavemeter, by Marconi Company, London, 191817. Kymograph, by C. F. Palmer, London, before 1934?18. Three-Colour Stereoscopic Viewer (Kromaz), by Barnard & Gowenlock,...19. Prismatic Binoculars in Leather Carry Case, by C.P. Goerz,...20. Range Block Radio Part, by Marconiphone, English, c. 192321. RB1B Regenerator Unit, by Marconiphone Co. Ltd., London, c....22. V2A Radio Valve Receiver, by Marconiphone Co. Ltd., London,...23. Medical Sledge-type Induction Coil24. 12 Volt Fleming Valve, by Ediswan, London, c. 190525. 4 Volt Fleming Valve, by Royal Ediswan, London, c. 1905 Next Results >
