Northern Pacific diesel locomotive number 6502C in the engine facility at Auburn, Washington. NP 6502C is an F-7 built by Electro Motive Division of General Motors Company in 1949. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 602 at the passenger yard at Fargo, North Dakota, on April 26, 1950. NP 602 is a HH-660 built by American Locomotive Company in 1940. This unit was numbered 127 when delivered and renumbered to 602 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 6018 in the engine facility at Auburn, Washington, on July 02, 1952. NP 6018 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 6017 in the engine facility at Auburn, Washington, circa 1952. NP 6017 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 6017 in the engine facility at Auburn, Washington, circa 1952. NP 6017 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 6016A in the engine facility at Auburn, Washington, on May 1968. NP 6016A 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 6016A in the engine facility at Auburn, Washington, on May 1968. NP 6016A 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 6016D in the engine facility at Auburn, Washington, on July 24, 1967. NP 6016D 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 6015 in the engine facility at Auburn, Washington, on July 02, 1952. NP 6015 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 6013 in the engine facility at Auburn, Washington, in 1952. NP 6013 is an F-7 built by Electro Motive Division of General Motors Company in 1951. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,