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An introduction to the language of railroading, in which words, colored lights, flags, semaphore arms, coded whistles, hand signals, flares, and explosive alarms are used to guide trains and announce their arrivals and departures.
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1 edition- Other · English · 1983Pantheon Books · 85 pages · 9780394857503
RailroadsJuvenile literatureSignalingSignals and signaling