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Edison "loudspeaking" telephone

Edison "loudspeaking" telephone

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Description (Brief)
Edison Telephone Transmitter and Receiver, on wooden base plate. Transmitter and base plate both numbered 149. Last patent date on base plate June 15, 1878 under Edison's name. Receiver has chalk amplifier (?) attached. Edison Loudspeaking Telephone.
Location
Currently not on view
Object Name
Telephone
wall telephone
Date made
c1879
date made
ca 1879
associated person
Edison, Thomas Alva
maker
Edison, Thomas Alva
Measurements
overall: 14 in x 10 in x 9 1/4 in; 35.56 cm x 25.4 cm x 23.495 cm
ID Number
EM.314896
catalog number
314896
serial number
149
accession number
212171
Credit Line
Gift of Hilda P. Munroe
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Work and Industry: Electricity
Data Source
National Museum of American History
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