« Chessie Prototype Photos

Chessie 4257 Oak, PA

Chessie 4257 Oak, PA

WM GP40-2 in Chessie colors at Oak, PA, 1978 -Dan Bourque collection

WM GP40-2 4257 in Chessie colors teams up with WM GP9 6400 at Oak, PA, 22 Apr 1978

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