Northern Pacific diesel locomotive number 6506 leads a passenger train at Allentown toward King Street Station in Seattle, Washington, circa 1948. Photo by J.A. Turner. Other Subject Classes: diesel locomotive, passenger train

Northern Pacific diesel locomotive number 6506 makes a station stop at Auburn, Washington, in 1947. NP 6506, an F-3 built by Electro Motive Division of General Motors Company in 1947, leads train No. 5 from Spokane at Main Street in Auburn WA. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Northern Pacific diesel locomotive number 6506 makes a station stop at Auburn, Washington, in 1947. NP 6506, an F-3 built by Electro Motive Division of General Motors Company in 1947, leads train No. 5 from Spokane at Main Street protected by a crossing guard. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Northern Pacific diesel locomotive number 6506 in the engine facility at Auburn, Washington, on May 09, 1948. NP 6506 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 6506 at Auburn, Washington, on June 09, 1954. NP 6506 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 6506 in the engine facility at Missoula, Montana, on August 20, 1949. NP 6506 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 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 Number 6506C, an Electro-Motive Division (EMD) Type F7, at Glendive, Montana.

Northern Pacific diesel locomotive number 6507 at East Auburn, Washington, on April 19, 1950. NP 6507 is an F-7 built by Electro Motive Division of General Motors Company in 1949. Note the troop car behind the locomotives. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,

Northern Pacific diesel locomotive number 6507 in the station at Pasco, Washington, on May 21, 1951. NP 6507 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,