Southern Pacific 2353 is one of 10 heavy 4-6-0 "Ten-wheeler" steam locomotives built by Baldwin Locomotive Works (BLW) in August 1912, designated the T-31 class. It was delivered to the Southern Pacific Railroad (SP) in October and the boiler was changed in 1917. In 1927, 2353 was leased to the San Diego & Arizona line, and later returned to Southern Pacific in 1939, serving in the San Francisco Bay Area. No. 2353 was retired from service on 18 January 1957 and displayed for the next 29 years at the California Mid-Winter Fairgrounds in Imperial, California.