http://www.drgw.net/gallery/main.php http://www.drgw.net/gallery/v/DRGWDieselContainer/F7s/DRGW5591/drgw_5591_plainview_co_25_may_1957_000.jpg.html 42788 DRGW 5591 leads three other F units and a GP9 at Plainview, CO, on 25-May-1957. Dave Straight photo.