Northern Pacific diesel locomotive number 2516 in the engine facility at Auburn, Washington, on May 1968. NP 2516 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2520 in the engine facility at Auburn, Washington, on May 07, 1968. NP 2520 is a U25C built by General Electric in 1965. The Auburn roundhouse appears in the background. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2520 in the engine facility at Auburn, Washington, in 1968. NP 2520 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 2520 in the engine facility at Auburn, Washington, on May 07, 1968. NP 2520 is a U25C built by General Electric in 1965, parked near the Auburn roundhouse in 1968. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2521 in the engine facility at Auburn, Washington, on October 09, 1967. NP 2521 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2521 in the engine facility at Auburn, Washington, on April 08, 1968. NP 2521 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2522 in the engine facility at Auburn, Washington, on April 08, 1968. NP 2522 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2523 in the engine facility at Auburn, Washington, on September 04, 1967. NP 2523 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2523 control stand at Auburn, Washington, in May 1968. NP 2523 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 2523 control stand at Auburn, Washington, in May 1968. NP 2523 is a U25C built by General Electric in 1965. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive