Eastbound train WR-2 with 1730, 1571, 1719 for power approaching a "two-light' automatic block signal (not to be confused with a "distant Signal" where the lights are staggered). These signals were used on heavier traffic lines where train speeds were faster, operated closer together and blocks were shorter. Another point of interest is the two mainline siding switches in close proximity on the westbound main.....

Photographed by Bruce Nelson, September 21, 1974.
Added to the photo archive by Bruce Nelson, July 28, 2018.
Railroad: Boston & Maine.

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