RAILROAD SIGNAL PRINT READING / SIGNAL TRAINING MANUAL

UP FOR AUCTION ARE THESE VERY HARD TO FIND RAILROAD SIGNAL MANUALS.
THESE TWO BOOKS ARE ALL YOU NEED TO KNOW RAILROAD SIGNAL TERMS, DEFINITIONS, SIGNAL ASPECTS AND PRINT READING FOR SIGNALS AND SWITCH MACHINES.
BOOKS ARE IN NEW/LIKE NEW CONDITION
THANKS FOR LOOKING!

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