Burlington Northern Diesel Locomotive 403 at Denver, Colorado, August 1971, Big Sky Blue paint scheme (as Burlington Northern 6433). Other subject classes: Locomotive

Burlington Northern Diesel Locomotive 403 at Denver, Colorado, August 1971, Big Sky Blue paint scheme (as Burlington Northern 6433). Other subject classes: Locomotive

Burlington Northern diesel locomotive 403, formerly Northern Pacific 403, at Tacoma, Washington, on January 26, 1971. Number 403 is a VO-1000 built by Baldwin, builder's number 64429. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight yard.

Burlington Northern diesel locomotive 4036 in the consist of a westbound grain train at Willmar, Minnesota on November 28, 1984. Number 4036 is a B30-7AB built by General Electric (GE) builder's number 44011. Photo by Howard Patrick.

Burlington Northern diesel locomotive 404, formerly Northern Pacific 404, at Tacoma, Washington in May 1971. Number 404 is a VO-1000 built by Baldwin, builder's number 70139. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, steel box car.

Burlington Northern diesel locomotive 404, formerly Northern Pacific 404, at Tacoma, Washington, on January 26, 1971. Number 404 is a VO-1000 built by Baldwin, builder's number 70139. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight yard.

Burlington Northern diesel locomotive 404, formerly Northern Pacific 404, at Tacoma, Washington, on February 25, 1972. Number 404 is a VO-1000 built by Baldwin, builder's number 70139. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 405, formerly Northern Pacific 427, at Tacoma, Washington, on February 23, 1971. Number 405 is a VO-1000 built by Baldwin, builder's number 71551. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4050, formerly Spokane, Portland and Seattle 65, at Tacoma, Washington in 1973. Number 4050 is an RS-3 built by American Locomotive Company (ALCO), builder's number 78461. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4050, formerly Spokane, Portland and Seattle 65, at Tacoma, Washington in 1973. Number 4050 is an RS-3 built by American Locomotive Company (ALCO), builder's number 78461. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.