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ATSF SEMAPHORES <br />The signal was infact a large disc in the order of 12" diam abd was mounted on the upright wall of the cupola and moved in an arc at an angle of 90 degrees fto the lenght of the train. The conductor moved it in different ways to indicate different meanings. <br /> <br />Other railroads inlater days, used automobile type air-horns and auto batteries for power to comunicate with long short and crow blasts. A crow is the noise a rooster makes and it derived from our limey cousins across the pond. Laterly somerailroads used two way radios to comunicate between caboose and engine. Some conductors used cartriges that burnt with different colored smoke to indicate a communication during the day and colored lamps at night. There are so amy different ways of comunicating an article in Trains or Model Railroader is what we need to find it all out. How about it Andy?
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