type 1-A multiplex automatic control

type 1-A multiplex automatic control

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Location
Currently not on view
Object Name
Control, Multiplex
telegraph control
Maker
Western Union Corporation
ID Number
EM.333367
accession number
294351
collector/donor number
100-116
accession number
294351
catalog number
333367
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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