Machado & Roller ammeter

Machado & Roller ammeter

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Location
Currently not on view
Object Name
Ammeter
Maker
Western Union Corporation
Physical Description
wood (part: material)
metal (part: material)
glass (part: material)
paper (part: material)
Measurements
overall: 5 1/2 in x 7 1/4 in x 10 1/4 in; 13.97 cm x 18.415 cm x 26.035 cm
ID Number
EM.331775
accession number
294351
collector/donor number
100-074
accession number
294351
catalog number
331775
accession number
294351
Credit Line
from Western Union Corporation
See more items in
Work and Industry: Electricity
Data Source
National Museum of American History
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