Search for all terms: Material: iron? 11 records found.Records with Images1. Cylindrical Reflecting Vertical Galvanometer, by Cambridge... 2. Irwin Oscillograph, by Robert W. Paul, London, c.1919 3. Tilting Board, by Guglielmo Marconi, English, c. 1899 4. Gray Magnetic Relay Key, by Marconi Company, London, c. 1910 5. Company Seal Embosser Vulcan Foundry Ltd, Britain, 20th Century 6. Company Seal Embosser J.W. Flower & Company Ltd, Britain, 20th... 7. Telegraph Relay, by H.W. Sullivan Ltd, London, Early 20th Century 8. Small Coupled Two-Way Switch, Early 20th Century 9. Company Seal Embosser GEC-Elliott Automation Ltd, Britain,... 10. Silvertown Condensor, by GEC?, London, 1918 11. Metal Component Pair FT-162 For Radio, 20th Century
