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QUOTE: Originally posted by M636C The word refers to an early form of fixed signal, a ball, sometimes lit internally at night that was supported by a rope and pulley from the signal post. At stop, the ball was either low on the post or not visible, inside a shroud or container. The clear signal was the ball raised to the top of the post, becoming clearly visible. Thus a "high ball" was a signal to depart. The term has become one word, and is still used although ball signals are obsolete. There was a recent cover story in "Classic Trains" about late surviving (into the 1960s) ball signals in Vermont. Some signals had more than one ball for specific signal meanings. Peter
There is no such thing as a bad day of railfanning. So many trains, so little time.
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