Northern Pacific diesel locomotive number 215 at the roundhouse in Tacoma, Washington, on February 21, 1970. NP 215 is a GP-9 built by Electro Motive Division of General Motors Company in 1955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, road switcher

Northern Pacific diesel locomotive number 214 at the roundhouse in Tacoma, Washington, on April 1970. NP 214 is a GP-9 built by Electro Motive Division of General Motors Company in 1955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, road switcher

Northern Pacific diesel locomotive number 175 in a yard at Tacoma, Washington, on July 1970. NP 175 is a SW 1200 built by Electro Motive Division of General Motors Company in 1958. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 175 in a yard at Tacoma, Washington, on July 02, 1970. NP 175 is a SW 1200 built by Electro Motive Division of General Motors Company in 1958. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 168 in a yard at Tacoma, Washington, circa 1949. NP 168 is a VO 1000 built by Baldwin in 1945. This unit was renumbered to 421 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 163 in a yard at Tacoma, Washington, on July 11, 1946. First NP 163 is a VO 1000 built by Baldwin in 1945 and renumbered to 416 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 160 at the roundhouse in Tacoma, Washington, on July 11, 1946. NP 160 is a VO 1000 built by Baldwin in 1945. This unit was renumbered to 413 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 159 in the engine facility at Tacoma, Washington, on May 17, 1970. NP 159 is a SW 1200 built by Electro Motive Division of General Motors Company in 1957. This was the second unit owned by the NP to be numbered 159. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 150 in the Tacoma, Washington, roundhouse circa 1946. First NP 150 is an S-2 built by American Locomotive Company in 1943. The unit was renumbered to 708 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 149 in the engine facility at Tacoma, Washington, in 1966. NP 149 is a SW 1200 built by Electro Motive Division of General Motors Company in 1957. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive