CPL history lesson
NW Mailing List
nw-mailing-list at nwhs.org
Sun Dec 31 12:22:43 EST 2006
Article in the N&Ws Magazine Feb 1932 puts the first Position Lights
installed on the Shenandoah Div.
in 1925. The conversion to CPLs was started in 1959 best I can tell maybe a
little earlier. Dwarfs were
converted starting 1964.
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