telegraph key

Location
Currently not on view
date made
ca. 1880
ca 1880
Measurements
overall: 4 in x 7 in x 3 3/4 in; 10.16 cm x 17.78 cm x 9.525 cm
ID Number
EM.181949
catalog number
181949
accession number
2015.0173
Credit Line
from Sarah J. Farmer
See more items in
Work and Industry: Electricity
Data Source
National Museum of American History

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