Northern Pacific 50-foot, box car number 5282 with plug and sliding doors is in a yard at Albuquerque, New Mexico, in October 1978. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 40.75-foot, box car number 49170 with a sliding door is in a yard at Albuquerque, New Mexico, on December 30, 1980. The car is part of the 49050-49999 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 40.75-foot, box car number 46030 with a sliding door is in a yard at Albuquerque, New Mexico, on June 4, 1980. The car is part of the 46000-46725 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 40.3-foot, box car number 36219 with one 10-foot, sliding door is in a yard at Albuquerque, New Mexico, on March 13, 1978. The car is part of the 36000-36299 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 40.5-foot, box car number 29232 with one sliding door is on a siding at Albuquerque, New Mexico, on June 12, 1980. The car is part of the 29000-29499 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific box car 2910 in a yard in Albuquerque, New Mexico, on May 30, 1980. Box car NP 2910 is part of the 60.5-foot, double-plug-door box car series numbered from 2900-2919. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 40.75-foot, box car number 24429 with one sliding door is in a yard at Albuquerque, New Mexico, on July 29, 1981. The car is part of the 24000-24499 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 40.75-foot, box car number 24032 with one sliding door is in a yard at Albuquerque, New Mexico, on December 30, 1980. The car is part of the 24000-24499 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 40.75-foot, box car number 24026 with one sliding door is in a yard at Albuquerque, New Mexico, on April 8, 1979. The car is part of the 24000-24499 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific box car 2265 on a siding in Belen, New Mexico, on May 3, 1981. Box car NP 2265 was built by the NP Car Shops in Brainerd, Minnesota, over 1961-62 as part of the 50-foot, double-door box car series numbered from 2000 to 2349. Photo by GJ Werkema. Other subject classes: freight car, steel box car