“Short of a Full Deck” This unusually short CSX trailer train, with Chessie System/B&O GP40-2 4438 as the sole power, is westbound approaching Poplar (mp 82.5) on CSX's (former B&O) Philadelphia Subdivision, on July 26, 1987 at 13:48.
Presumably, this is either R133 (St. Louis Trailer Train) or R135 (Chicago Trailer Train). Either way, it’s late, as both R133 (ex-SLTT) and R135 (ex-CHTT) would normally traverse the entire subdivision under cover of darkness.