http://www.drgw.net/gallery/main.php http://www.drgw.net/gallery/v/DRGWDieselContainer/GP40s/DRGW3131/drgw-3131-pueblo_co-_13-sep-1986_-000.jpg.html 55523 The conductor's side of 3131 in the Pueblo yard on 13 Sep 1986. http://www.drgw.net/gallery/v/DRGWDieselContainer/GP40s/DRGW3131/drgw_3173_pueblo_co_2_jan_1984_000.jpg.html 41655 D&RGW 3173 (3131's temporary number before painting) in the Pueblo, CO, yard on 2-Jan-1984. Photographer is unknown, but it's likely this is an Andy Payne negative.