Northern Pacific 60-foot, flat car number 66126 in a yard at Denver, Colorado, in January 6, 1990. The car is part of the 66100-66244 number series. Photo by GJ Werkema. Other subject classes: freight car, flat car

Northern Pacific 60-foot, flat car number 66133 in a train at Albuquerque, New Mexico, in May 13, 1979. The car is part of the 66100-66244 number series. Photo by GJ Werkema. Other subject classes: freight car, flat car

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 60-foot, flat car number 66166 in a train at Broomfield, Colorado, on February 24, 1990. The car is part of the 66100-66244 number series. Photo by GJ Werkema. Other subject classes: freight car, flat car

Northern Pacific 89-foot, flat car number 66900 in a yard at Bellingham, Washington, on February 15, 1993. The car is part of the 66900-66919 number series. Photo by GJ Werkema. Other subject classes: freight car, flat car

Northern Pacific gondola 119898, at Cle Elum, Washington, June 1967.

Northern Pacific boxcar 1213, at Spokane, Washington, June 1967.

Northern Pacific boxcar 1379, at Ritzville, Washington, June 1968.

Northern Pacific boxcar 16696, at Amarillo, Texas, August 1973.

Northern Pacific boxcar 1755, at Sprague, Washington, June 1967.