Telephones : Bell's first telephone (model) and early transmitting instruments.
Object detail
Accession number
03-1042
Marks
Replica or original picture of first attempt to manufacture a microphone or speech transmitter. Hand-written
Media/Materials
Physical description
1 photograph : black and white ; 21 x 31 cm.
Credit Line
Telephones : Bell's first telephone (model) and early transmitting instruments., 03-1042. Walsh Memorial Library, The Museum of Transport and Technology (MOTAT).
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