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 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 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 6543 at Auburn, Washington, on November 30, 1971. Number 6543 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-1. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6539 at Auburn, Washington, on March 27, 1973. Number 6539 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37147. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6538 at Auburn, Washington, on October 21, 1971. Number 6538 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37146. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6538 at Auburn, Washington, on October 21, 1971. Number 6538 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37146. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6537 at Auburn, Washington, on March 22, 1972. Number 6537 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37145. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6536 at Auburn, Washington in August 1975. Number 6536 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37144. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6536 at Auburn, Washington, on February 16, 1972. Number 6536 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37144. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.