Northern Pacific signal equipment, Union Station, Tacoma, Washington, December 11, 1967. Outside of station with workers hoisting crate with Centralized Traffic Control equipment to platform roof. Photo by J.M. Fredrickson . Other Subject Classes: signal equipment, station, railroad employee

Northern Pacific signal equipment, Union Station, Tacoma, Washington, December 11, 1967. Worker on platform roof readies new Centralized Traffic Control equipment for movement into dispatchers office. Photo by J.M. Fredrickson . Other Subject Classes: signal equipment, railroad employee, station

Northern Pacific signal equipment, Union Station, Tacoma, Washington, December 11, 1967. Workers on platform roof moving new Centralized Traffic Control panel through window into dispatchers office. Photo by J.M. Fredrickson . Other Subject Classes: signal equipment, station, railroad employees

Northern Pacific signal equipment, Union Station, Tacoma, Washington, December 11, 1967. Workers installing new Centralized Traffic Control panel in dispatchers office. Photo by J.M. Fredrickson . Other Subject Classes: signal equipment, railroad employee, dispatchers office

Northern Pacific advertising sign, "Northern Pacific Railway Route of the Great Big Baked Potato," on Baker Dock at Tacoma, Washington, as viewed across the football stadium of Stadium High School, circa 1960. Photo by J.M. Fredrickson. Other Subject Classes: advertisement, sign, dock, school

Northern Pacific roundhouse at Tacoma, Washington, circa 1938. With turntable, standpipe. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: roundhouse, turntable, water column

Northern Pacific roundhouse at Tacoma, Washington, circa 1940. Roundhouse complex with water tanks, cinder pit. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: roundhouse, water tank, cinder pit

Northern Pacific roundhouse at Tacoma, Washington, circa 1938. With turntable, blow-down towers. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: roundhouse, turntable, water column

Northern Pacific station at Reservation/Tacoma, Washington, circa 1927. Joint facilities view with depot, color-light and semaphore signals, UP mainline at left. Photo by James Fisher, J.M. Fredrickson collection. Other Subject Classes: station, signal

Northern Pacific Railroad inspection car, number B-67 parked next to the foot bridge at Martin, Washington in 1939. Photo by C.L. Galbreath, J.M. Fredrickson Collection. Other Subject Classes: motor car, track inspection