GP7 529
GP7 529 at Enid, Oklahoma in October 1978 (George LaPray).
GP7 529 at Enid, Oklahoma in October 1978 (George LaPray).
Front and back: GP7s 521, 575 and 529 and Caboose 247 at Nichols Jct, Springfield, MO (date unknown).
Thanks to Karl Brand.