| AT&SF Yard Slug 121 at Corwith Yard in Chicago, Illinois on an unknown day in May 1979, Kodachrome by Chuck Zeiler. Although the slug appears to be unnumbered, by tracing the mother (1310) back at atsfrr.net I was able to determine the number as 121, assigned to GP7 2246 which was later rebuilt and renumbered to 1310. Number 121 was built as NW2 2356 (c/n 918), renumbered to 2406 in August 1945, rebuilt to Slug 121 in July 1973 and assigned to 2246 at Corwith hump yard, sold to National Railway Equipment in September 1988. |