Canadian National 3254, built in 1917, blasts under on of the DL&W's historic signal bridges. These signals allowed trains to follow each other very closely using green (full speed), yellow (be prepared to stop) and red (stop) signals.
Canadian National 3254, built in 1917, blasts under on of the DL&W's historic signal bridges. These signals allowed trains to follow each other very closely using green (full speed), yellow (be prepared to stop) and red (stop) signals.
U.S. National Park Service
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