Early type of Bell transmitter with membrane diaphragm, invented by Alexander Graham Bell, made by Charles Williams Jr,, Boston, Massachusetts, United States, 1875-1914. This is an exact replica of Bell's first telephone made in June 1875 and was made by the same maker, Charles Williams Jr. of Boston, whose name is stamped on the baseboard.
- Object Number:
- brass (copper, zinc alloy), copper (alloy), plastic (unidentified), vellum and wood (unidentified)
- component - object
- Donated by the General Post Office
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