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. This entry was posted in Slides and tagged 423, 613, Electro-Motive Division, GP38-2, GP7. Bookmark the permalink.