SN 402 getting tested

Click Photos To Enlarge

Sacramento Northern (SN) 402 getting tested outside the WP roundhouse in Stockton, CA, circa 1973.
SN402 is an EMC SW1. It was built in 1939 for the Western Pacific Railroad, as WP 502, builder's number 988. It was the second of three WP SW1s, the first diesel-electric locomotives purchased by the railroad. It was sold to WP subsidiary Sacramento Northern Railway in the 1960s, it went to the California State Railroad Museum after the Union Pacific merger in 1982.
--
Unknown camera and film,
Hand scans: 2009.11.22.1.4, 5-ph