Northern Pacific 50-foot boxcar 4402, a double-door car from the 4000-4499 series is pictured in the yard at Albuquerque, New Mexico, on April 16, 1978. Photo by GJ Werkema. Other subject classes: freight car, steel box car,

Northern Pacific 50-foot boxcar 4302, a double-door car from the 4000-4499 series is pictured in the yard at Albuquerque, New Mexico, on October 1, 1978. Photo by GJ Werkema. Other subject classes: freight car, steel box car,

Northern Pacific 50-foot boxcar 4079, a double-door car from the 4000-4499 series is pictured in the yard at Albuquerque, New Mexico, on June 28, 1978. Photo by GJ Werkema. Other subject classes: freight car, steel box car,

Northern Pacific boxcar 39885 at Bellingham, Washington on house track at freight house; the boxcar is in bulk cement service. Other subject categories: Car-Freight, Car-Box, Freight

Northern Pacific 50-foot boxcar 3986, a sliding and plug door car from the 3882-3999 series is pictured in the yard at Albuquerque, New Mexico, on July 10, 1972. Photo by GJ Werkema. Other subject classes: freight car, steel box car,

Northern Pacific boxcar 20303 at Bellingham, Washington in or near the Great Northern yard; photograph sequence TRWahl0252-0253. Other subject categories: Car-Freight, Car-Box, Freight

Northern Pacific boxcar 1006 at Bellingham, Washington in or near the Great Northern yard. Other subject categories: Car-Freight, , Freight

Northern Pacific 50-foot, box car number 7836 with double-doors is in a yard at Albuquerque, New Mexico, on November 29, 1978. The car is part of the 7500-7899 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 50-foot, box car number 6322 with double-doors is in a yard at Albuquerque, New Mexico, on December 11, 1980. The car is part of the 6000-6499 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 50-foot, box car number 5675 with waffle-sides and plug and sliding doors is in a yard at Albuquerque, New Mexico, on May 23, 1978. The car is part of the 5300-5699 number series. Other subject classes: freight car, steel box car