Burlington Northern diesel locomotive 4100, formerly Spokane, Portland and Seattle 856, at Auburn, Washington, on April 01, 1971. Number 4100 is an FA-1 built by American Locomotive Company (ALCO), builder's number 77671. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, truss bridge.

Burlington Northern diesel locomotive 4100 at Auburn, Washington, on April 01, 1971. Numbers 4100, 1995, 714 and one other unit lead train number 147, Seattle to Portland time freight. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive.

Burlington Northern diesel locomotive 4100, formerly Spokane, Portland and Seattle 856, at Tacoma, Washington, on April 01, 1971. Number 4100 is an FA-1 built by American Locomotive Company (ALCO), builder's number 77671. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4100 at Tacoma, Washington in November 1985. Number 4100 is a B30-7A built by General Electric, builder's number 44458. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4102, formerly Spokane, Portland and Seattle 857, at Vancouver, Washington, on November 28, 1971. Number 4102 is an FA-1 built by American Locomotive Company (ALCO), builder's number 77672. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4102 at Vancouver, Washington, on November 28, 1971. Number 4102 is an FA-1, RS-3 built by American Locomotive Company (ALCO). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4104 at Kent, Washington, on April 07, 1971. Number 4104 leads train number 139, Seattle to Stockton, California time freight. The train operated via Vancouver, Washington, Wishram, Washington and Bieber, California. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, passenger depot.

Burlington Northern diesel locomotive 4104 at Kent, Washington, on April 07, 1971. Number 4104 leads train number 139, Seattle to Stockton, California time freight. The train operated via Vancouver, Washington, Wishram, Washington and Bieber, California. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, passenger depot.

Burlington Northern diesel locomotive 4106, formerly Spokane, Portland and Seattle 859, at Tacoma, Washington, on July 09, 1970. Number 4106 is an FA-1 built by American Locomotive Company (ALCO), builder's number 77674. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4106 circa 1970. Number 4106 is an American Locomotive Company (ALCO) FA-1 and is shown with RS-3 number 4106 and FB number 4058. Number 4106 was formerly Spokane, Portland and Seattle (SP&S) number 858A and 4058 is Ex SP&S 73. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.