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Hackaday
12 年
Semaphore Signal Replica Perfect For The Train Buff In Your Life
Rather than construct something for the railroad itself, he decided that an early 1900’s-style semaphore railroad signal would make a great novelty item for the room. The project started with ...
Trains.com on MSN
12 个月
Railroad signals
Perhaps the most classic of all railroad signals, the semaphore, came into general use in the 1860s. This type, based on an ...
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