GP7 577
GP7 577 at Cedars, Oklahoma on April 10, 1974.
GP7 577 at Cedars, Oklahoma on April 10, 1974.
GP7 577 leads a train at Cedars, Oklahoma in May 1974.
GP7s 577, 532 and 605 at Oelwein, Iowa in August 1976 (John Luckfield).
GP7 577 at Reform, Alabama in September 1970 (Vernon Ryder).