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lamp and scale for mirror galvanometer

lamp and scale for mirror galvanometer

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Location
Currently not on view
Object Name
Galvanometer Lamp And Scale
galvanometer
galvanometer scale
galvanometer lamp
date made
ca 1920
Maker
Western Union Corporation
ID Number
EM.332795
accession number
294351
catalog number
332795
Credit Line
from Western Union Corporation
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Work and Industry: Electricity
Data Source
National Museum of American History
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