clay railroad telegraph insulator

clay railroad telegraph insulator

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Object Name
Other Terms
Insulator; Components; Telegraphy; Communications; Non-Fired
date made
ca 1915
ca. 1915
Physical Description
clay (overall material)
average spatial: 9 cm x 7.5 cm; 3 9/16 in x 2 15/16 in
ID Number
catalog number
nonaccession number
Credit Line
from Willes L. Johansen, in memory of Ralph E. Goad
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Work and Industry: Electricity
Data Source
National Museum of American History
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