GP38AC 635
GP38AC 635 at Irving, Texas on September 3, 1978 (Ed Chapmam).
GP38AC 635 at Irving, Texas on September 3, 1978 (Ed Chapmam).
GP38ACs 635 and 646 (date and location unknown).
GP38AC 2112 (ex-635) at Tulsa, Oklahoma on September 4, 1981 (RA Plazzotta).