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Maine Memory Network

Transmission & Distribution: Insulators

Rubber pin-type insulator, ca. 1930

Rubber pin-type insulator, ca. 1930

Item 74826 info
Maine Historical Society

Rubber insulators were a common replacement for glass pin-type insulators on telephone lines between 1930 and 1980.

In some areas, the glass insulators had proved tempting targets for thrown rocks or gunfire.


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