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Union Switch and Signal DW Automatic Flagman

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DW Automatic Flagman

Never patented by the Union Switch & Signal Company, they seem to have appeared circa 1918 and were used by the Canadian Pacific Railway. The company was known more for their semaphore signals than the "wig wags".

This page is under construction.

http://www.trainweb.org/dansrailpix/WIG_WAG_us&s1.htm http://www.trainweb.org/dansrailpix/USSdw.pdf http://web.archive.org/web/20200214052941/http://www.semaphores.com/

Gallery

A Union Signal c.1957 on Stannis Street in Windsor.

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