Search for all terms: Material: bakelite? Page 1 of 138 records found. Displaying 25 50 100 200 at a time.Next Results > Records with Images1. Ship's Bridge Telephone, Early 20th Century 2. Ship's Bridge Telephone, Early 20th Century 3. BBC-Marconi Ribbon Microphone, by Marconi Company, London,... 4. Small Coupled Two-Way Switch, Early 20th Century 5. Marconi Crystal Receiver Type 31, by Marconi Company, London,... 6. Image Orthicon Tube In Case, by English Electric, English,... 7. Main Starter Switch, Early 20th Century 8. Marconi Radio Valve Type DEHL210, by Marconi Company, English,... 9. Marconi Note Magifier Type 227B, by Marconi Company, English,... 10. Marconiphone Two-Valve Receiver Type 21, by Marconiphone Company,... 11. Morse Key, by Elliott Brothers (London) Ltd, London, Early... 12. Forward Spark 'B' Wavemeter No. 1511, by War Department, Britain,... 13. 'Marconi' Auto-Alarm Morse Key Type 316A, by Marconi Company,... 14. Siemens & Halske Radio Valve Type RE87, by Siemens & Halske,... 15. Drysdale-Tinsley Vibration Galvanometer and Case, by H. Tinsley... 16. 'Marconi' Wavemeter, by Marconi Company, London, 20th Century 17. Forward 'B' Spark Wavemeter No. 1339, by War Department, Britain,... 18. Phase Rotation Indicator, by Elliott Brothers (London) Ltd.,... 19. Wheatstone Bridge Electrical Testing Set, by Elliott Brothers... 20. Standard Resistance, by Elliott Brothers, London, ?Early 20th... 21. High-Voltage Pressure Detector, by Elliott Brothers, Mid 20th... 22. Torsiometer Indicator, by Victoria Instruments, 20th Century 23. Maximum Demand Indicator, 20th Century 24. Oxygen Therapy Inhaler 25. Marconiphone Two-Valve Receiver Type V2A and accompanying Headphones,... Next Results >