GP38AC 2112 by Frisco.org Posted on January 6, 2014 GP38AC 2112 (ex-635) GP38AC 2112 (ex-635) at Tulsa, Oklahoma on September 4, 1981 (RA Plazzotta). This entry was posted in BN Patched, RT Collection and tagged 2112, 635, Electro-Motive Division, GP38AC. Bookmark the permalink.