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Henning pocket telegraph instrument

Henning pocket telegraph instrument

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Usage conditions apply
Currently not on view
Object Name
pocket telegraph
telegraph set
date made
ca 1863
Henning, Robert
overall: 1 1/2 in x 5 in x 2 1/2 in; 3.81 cm x 12.7 cm x 6.35 cm
ID Number
accession number
catalog number
Credit Line
from Richard Applebough
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Work and Industry: Electricity
Data Source
National Museum of American History
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