Northern Pacific diesel locomotive number 401 in a yard at Tacoma, Washington, on February 01, 1967. NP 401 is a VO 1000 built by Baldwin in 1941. The original number for this unit when delivered to the NP was 110 and was renumbered in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 403 in the engine facility at Auburn, Washington, on May 19, 1970. NP 403 is a VO 1000 built by Baldwin in 1942. This unit was originally numbered 112 and was renumbered in 1950. The unit received a replacement Electro Motive Division of General Motors Company 900 hp engine in 1959. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 414 in a yard at Tacoma, Washington, on May 1970. NP 414 is a VO 1000 built by Baldwin in 1945. This unit was originally numbered 161 and was renumbered to 414 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 420 in the scrap line at Auburn, Washington, on March 24, 1970. NP 420 is a VO 1000 built by Baldwin in 1945. It was originally numbered 167 and renumbered to 420 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 555 in the engine facility at Auburn, Washington, on April 20, 1970. NP 555 is a GP-7 built by Electro Motive Division of General Motors Company in 1952. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, road switcher

Northern Pacific diesel locomotive number 6016 in a yard at Spokane, Washington, on July 28, 1951. NP 6016 is an F-7 built by Electro Motive Division of General Motors Company in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 6016 in a yard at Spokane, Washington, on February 28, 1951. NP 6016 is an F-7 built by Electro Motive Division of General Motors Company in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 6503 in the station at Spokane, Washington, on May 20, 1952. NP 6503 is an F-3 built by Electro Motive Division of General Motors Company in 1947. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 6504 in the station at Spokane, Washington, in 1950. NP 6504 is an F-5 built by Electro Motive Division of General Motors Company in 1948. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 6505 at the station in Spokane, Washington, in 1949. NP 6505 is an F-3 built by Electro Motive Division of General Motors Company in 1947. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,