Northern Pacific 60-foot, flat car number 66145 loaded with wrapped lumber in a yard at Albuquerque, New Mexico, in December 29, 1978. The car is part of the 66100-66244 number series. Photo by GJ Werkema. Other subject classes: freight car, flat car

Northern Pacific 41.5-foot, gondola car number 58299 in a siding at Denver, Colorado, in October 1974. The car is part of the 58250-58749 number series. Photo by GJ Werkema. Other subject classes: freight car, steel gondola car

Northern Pacific 41.5-foot, open hopper car number 87546 on a siding at Denver, Colorado, on October 15, 1989. The car is part of the 87500-87749 number series. Photo by GJ Werkema. Other subject classes: frieght car, open hopper car, 77T Ballast Hopper

Northern Pacific stock car 82713 in a cattle loading facility at Denver, Colorado, on August 1971. The car is part of the 82500-82749 number series. Photo by GJ Werkema. Subject Classes: freight car, stock car