GP7 521
GP7 521 (location unknown) in October 1967.
GP7 521 (location unknown) in October 1967.
GP7s 521 and 565 at Springfield, Missouri in September 1978.
GP7 521 at Oklahoma City, Oklahoma in October 1977 (John Arbuckle).
GP7 521, SW1500 352, GP15-1 109, U25B 826, B30-7 864 and GP35 727 at Springfield, Missouri in October 1979.
Front and back: GP7s 521, 575 and 529 and Caboose 247 at Nichols Jct, Springfield, MO (date unknown).
Thanks to Karl Brand.
GP7 521 at Fayetteville, Arkansas on July 7, 1977 (Isar Cleveland).
GP7 521 at Tulsa, Oklahoma on August 19, 1973 (Phillip Faudi).