| AT&SF GP20 1173 in Joliet, Illinois on July 11, 1965, photo by Chuck Zeiler. Built in December 1961 (c/n 26879) on EMD Order 7609, it was renumbered between November 1969 and June 1970 to 3173. It was rebuilt to GP20u 3073 July 10, 1980, and became TP&W 2006 in February 1989. |