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semaphore arm

semaphore arm

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Location
Currently not on view
Object Name
semaphore arm
Measurements
overall: 1 1/8 in x 9 3/4 in x 48 in; 2.8575 cm x 24.765 cm x 121.92 cm
ID Number
ZZ.RSN79616Z10
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Work and Industry: Transportation, Railroad
Data Source
National Museum of American History
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