Somerville, MAPC 8472 ex-NYC SW-1 (blt 1941) doing interchange work in lower end of B&M's hump Yard 8. Tracks in foreground are B&A and dwarf signal is easterly limit of B&M's Tower H.
Photographed by Bruce Nelson, December 10, 1971.
Added to the photo archive by Bruce Nelson, June 17, 2017.
Railroad: Penn Central.
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