Northern Pacific 50-foot, single plug door, refrigerator car 97090 is in a yard at Albuquerque, New Mexico, on August 5, 1979. The car is part of the 97000-97099 number series. Photo by GJ Werkema. Other subject classes: freight car, refrigerator car

Northern Pacific 50-foot, single plug door, refrigerator car 97007 is in a siding at Albuquerque, New Mexico, on May 30, 1980. The car is part of the 97000-97099 number series. Photo by GJ Werkema. Other subject classes: freight car, refrigerator car

Northern Pacific 50-foot, single plug door, insulated refrigerator car 96113 is in a yard at Albuquerque, New Mexico, on March 8, 1997. The car is part of the 96000-96199 number series. Photo by GJ Werkema. Other subject classes: freight car, refrigerator car

Northern Pacific 50-foot, single plug door, insulated refrigerator car 96099 is in a siding at Las Vegas, New Mexico, on September 9, 1984. The car is part of the 96000-96199 number series. Photo by Evan Werkema. Other subject classes: freight car, refrigerator car

Northern Pacific 50-foot, single plug door, insulated refrigerator car 96091 is in a siding at Clovis, New Mexico, on September 9, 1984. The car is part of the 96000-96199 number series. Photo by GJ Werkema. Other subject classes: freight car, refrigerator car

Northern Pacific 50-foot, single plug door, insulated refrigerator car 96086 is in a siding at Albuquerque, New Mexico, on March 10, 1991. The car is part of the 96000-96199 number series. Photo by Evan Werkema. Other subject classes: freight car, refrigerator car

Northern Pacific 50-foot, single plug door, insulated refrigerator car 96086 is coupled to Santa Fe locomotive 5319 in a train at Albuquerque, New Mexico, on June 20, 1990. The car is part of the 96000-96199 number series. Photo by Evan Werkema. Other subject classes: freight car, refrigerator car

Northern Pacific 50-foot, single plug door, insulated refrigerator car 96017 is in a yard at Albuquerque, New Mexico, on June 13, 1992. The car is part of the 96000-96199 number series. Photo by GJ Werkema. Other subject classes: freight car, refrigerator car

Great Northern Woodchip Car 174338 at Belen, New Mexico, June 21, 1983, Association of American Railroads Class GTS wood chip, Big Sky Blue paint scheme. Other subject classes: Woodchip car