Grey harmonic telegraph receiver

Grey harmonic telegraph receiver

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Location
Currently not on view
Object Name
telegraph relay
harmonic telegraph
date made
ca 1876
maker
Gray, Elisha
Measurements
overall: 2 1/2 in x 13 in x 5 3/4 in; 6.35 cm x 33.02 cm x 14.605 cm
ID Number
EM.324109
catalog number
324109
accession number
253039
Credit Line
from Oberlin College, Dept. of Physics, thru David L. Anderson
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Work and Industry: Electricity
Communications
Data Source
National Museum of American History
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