| AT&SF GP7u 1310 at Corwith Yard in Chicago, Illinois on an unknown day in September 1979, Kodachrome by Chuck Zeiler. Built in December 1952 as AT&SF GP7 2829 (c/n 17640) on EMD Order 5219, it was renumbered to 2246 (2nd), rebuilt to GP7u 1310 (2nd) during January 1977, at which time it was equipped to power yard slugs. It went on to become BNSF 50 and later BNSF 3820. |