Northern Pacific diesel locomotive number 6511 at Union Station in Tacoma, Washington, in July 1950. NP 6511 is an F-7 built by Electro Motive Division of General Motors Company in 1949. This is the northbound NP pool train No. 407 from Portland to Seattle. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 6509A in the engine facility at Tacoma, Washington, on March 06, 1967. NP 6509A 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 6509A at the engine facility in Tacoma, Washington, on February 1967. NP 6509A is an F-7A 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 6509A in the engine facility at Tacoma, Washington, on March 06, 1967. NP 6509A is an F-7A 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 6508C in the engine facility at Tacoma, Washington, on March 06, 1967. NP 6508C 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 6507A undercarriage encrusted with snow and ice, heading passenger train number 408, Seattle-Portland, at Tacoma, Washington, in January 1969. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Northern Pacific diesel locomotive number 6507 power truck encrusted with snow and ice as it heads passenger train number 408, Seattle-Portland, at Tacoma, Washington, in January 1969. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Northern Pacific diesel locomotive number 6506 in a yard at Tacoma, Washington, in 1953. NP 6506 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 6503 at Union Station in Tacoma, Washington, on September 17, 1949. NP 6503 is an F-7 built by Electro Motive Division of General Motors Company in 1949, makes a station stop at Tacoma Union Station in 1949. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger station

Northern Pacific diesel locomotive number 6010A in a yard at Tacoma, Washington, on April 10, 1970. NP 6010A 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,