Search for all terms: Material: ebonite Page 1 of 234 records found. Displaying 25 50 100 200 at a time.Next Results > Records with Images1. Portable Aircraft Spark Transmitter 40W, by Marconi Company,... 2. 'Marconi' Auto-Alarm Morse Key Type 316A, by Marconi Company,... 3. 'Marconi' Auto-Alarm Buzzer Type 225, by Marconi Company, English,... 4. Experimental Two-Valve Set, c. 1916 5. Silvertown Condensor, by GEC?, London, 1918 6. 'Marconi' Wavemeter Type MP7, by Marconi Company, London, Early... 7. Telephone Transformer Type 191A, by Marconi Company, English,... 8. Double-Pole Single-Throw Switch, English, Early 20th Century 9. Gray Magnetic Relay Key, by Marconi Company, London, c. 1910 10. Triple X-Stopper, by Marconi Company, London, Early 20th Century 11. Morse Key Type 971, by Marconi Company, Britain, 20th Century. 12. Morse Key Type 100A, by Marconi Company, Britain, Early 20th... 13. Brownie Crystal Receiver No 2, by Brownie Wireless Company,... 14. Direct Reading Portable Decremeter, by Marconi Company, London,... 15. Righi Oscillator, by Marconi Company, London, 20th Century 16. Amplifier Type 91, by Marconi Company, London, c. 1918 17. Induction Coil For Tuned Field Transmitter, by Marconi Company,... 18. Short Wave Receiver Type CM294C, by Marconi Company, USA, 1917 19. Replica Righi Oscillator, Late 20th Century 20. Multiple Oscillator, by Marconi Company, English, Early 20th... 21. Multiple Oscillator, by Marconi Company, London, Early 20th... 22. Small Multiple Discharger, Early 20th Century 23. 'Marconi' Wavemeter, by Marconi Company, London, 20th Century 24. Townsend Wavemeter, by Marconi Company, London, 1918 25. Medical Sledge-type Induction Coil Next Results >
