GP7 613 and GP38-2 423 by Frisco.org Posted on July 31, 2017 GP7 613 and GP38-2 423 GP7 613 and GP38-2 423 Fort Smith, Arkansas on August 18, 1976. Posted in Slides | Tagged 423, 613, Electro-Motive Division, GP38-2, GP7 | Leave a comment