Circuit Breaker

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A typical circuit breaker that would have been used during the turn of the century. This image is an example of one that powered a trolley

Source

International Correspondence Schools A Textbook on Electric Lighting and Railways (Scranton, PA: International Textbook Company, 1901)

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Full Resolution TIFF

1571×2919, 1.4 MiB

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551×1024, 122.3 KiB

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344×640, 59.2 KiB

Small

172×320, 16.5 KiB