Northern Pacific Railroad wrecker, number 17 picking up locomotive number 338 at South Bend, Washington, circa 1910. Photo from J.M. Fredrickson Collection. Other Subject Classes: company equipment, wrecking crane, steam locomotive.

Northern Pacific Railroad rotary snow plow number 10 parked at Auburn, Washington in May 1968. Photo by J.M. Fredrickson. Other Subject Classes: snow rotary plow, maintenance of way

Northern Pacific Railroad inspection car parked at the freight yard at Tacoma, Washington in 1915. Fredrickson Collection. Other Subject Classes: motor car, freight yard, track inspection

Northern Pacific Railroad track inspection car, number 2 at Easton, Washington, circa 1962. Hy-rail detector car on mountain grade between Easton and Martin. Photo by Tim J. Fredrickson, J.M. Fredrickson Collection. Other Subject Classes: company equipment, Hyrail Detector Car, track inspection

Northern Pacific Railroad flat cars, number 205303 at Tacoma, Washington in October, 1970, with a double load of company poles. Roundhouse and Northern Pacific GP9 in background. Photo by J.M. Fredrickson. Other Subject Classes: company equipment, flat car, maintenance of way.

Northern Pacific Railroad flat car, number 200190 at East Auburn, Washington in June, 1975, loaded with signal equipment. Photo by J.M. Fredrickson. Other Subject Classes: company equipment, flat car, maintenance of way.

Northern Pacific type GP 283 heading northbound at Vancouver in 1963. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel, Speeder.

Northern Pacific Railroad bunk car, number 200841, out of service at Tacoma, Washington in September, 1969. Photo by J.M. Fredrickson. Other Subject Classes: company equipment, outfit car, maintenance of way.

Northern Pacific Railroad box car, number 207947, derelict, at Ridgefield, Washington in August, 1976. Single sheath Northern Pacific box car. Photo by J.M. Fredrickson. Other Subject Classes: company equipment, box car.

Northern Pacific Railroad box car, number 207947, derelict, at Ridgefield, Washington in August, 1976. Single sheath Northern Pacific box car. Photo by J.M. Fredrickson. Other Subject Classes: company equipment, box car.