Burlington Northern diesel locomotive 4191, formerly Northern Pacific 911, at Tacoma, Washington, on August 27, 1971. Number 4191 is an RS-11 built by American Locomotive Company (ALCO), builder's number 82955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4192, formerly Northern Pacific 912, at Tacoma, Washington in March 1971. Number 4192 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83582. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4194, formerly Northern Pacific 914, at Tacoma, Washington, on October 20, 1980. Number 4194 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83584. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4196, formerly Northern Pacific 916, at Tacoma, Washington, on September 27, 1971. Number 4196 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83586. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4197, formerly Northern Pacific 917, at Tacoma, Washington, on April 14, 1973. Number 4197 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83587. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 4197, formerly Northern Pacific 917, at Tacoma, Washington, on April 14, 1973. Number 4197 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83587. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 421, formerly Northern Pacific 421, at Tacoma, Washington, on May 14, 1971. Number 421 is a VO-1000 built by Baldwin, builder's number 71545. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern Diesel Locomotive 424 at Tacoma, Washington, undated, Big Sky Blue paint scheme (as Burlington Northern 6454). Other subject classes: Locomotive

Burlington Northern diesel locomotive 4240, formerly Spokane, Portland and Seattle 300, at Tacoma, Washington, on April 03, 1971. Number 4240 is a C424 built by American Locomotive Company (ALCO), builder's number 3381-01. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 4240, formerly Spokane, Portland and Seattle 300, at Tacoma, Washington in March 1971. Number 4240 is a C424 built by American Locomotive Company (ALCO), builder's number 3381-01. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.