Dominion Atlantic Railway Digital Preservation Initiative - Wiki
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Union Switch and Signal DW Automatic Flagman
From DARwiki
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/
- http://www.trainweb.org/dansrailpix/sig_eng_1914_2.htm
- https://www.cptracks.ca/data/right_of_way/X-13-28.pdf