N&W Semaphore Signal Question
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nw-mailing-list at nwhs.org
Sun Nov 6 21:55:59 EST 2016
On N&W Style B (lower quadrant) and Style S (upper quadrant) semaphores, were the semaphore arms ("blades") made of wood or pressed steel?
(Orders could be shipped with either, as specified by the purchaser.)
-- abram burnett
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