Burlington Northern diesel locomotive 6550 at Auburn, Washington, on July 06, 1973. Number 6550 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-8. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6550 at Auburn, Washington in 1979. Number 6550 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-8. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6551 at Auburn, Washington, on November 30, 1971. Number 6551 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-9. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6552 at Auburn, Washington, on November 30, 1971. Number 6552 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-10. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6557 at Auburn, Washington, on April 17, 1972. Number 6557 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-15. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6561 at Auburn, Washington in April 1972. Number 6561 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-19. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6600, formerly Great Northern 427, at Auburn, Washington, on April 05, 1972. Number 6600 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 34736. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6602, formerly Great Northern 429, at Auburn, Washington, on July 06, 1973. Number 6602 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 34738. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6607, formerly Great Northern 434, at Auburn, Washington, on February 23, 1972. Number 6607 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 35111. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6608, formerly Great Northern 435, at Auburn, Washington, on February 17, 1972. Number 6608 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 35112. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.