The unloading gate detail of Northern Pacific Hart ballast car 87384 at Denver, Colorado, on September 20, 1973. The car is part of the 87000-87499 number series. Photo by GJ Werkema. Other subject classes: frieght car, open hopper car, Rodgers Ballast car

Northern Pacific 41.5-foot, open hopper car number 85421 in a yard at Denver, Colorado, on June 23, 1972. The car is part of the 85100-85499 number series. Photo by GJ Werkema. Other subject classes: frieght car, open hopper car, Selective Ballast car

Northern Pacific 41.5-foot, open hopper car number 85356 in a train at Skykomish, Washington, on April 10, 1988. The car is part of the 85100-85499 number series. Photo by GJ Werkema. Other subject classes: frieght car, open hopper car, Hopper

Northern Pacific 41.5-foot, open hopper car number 85324 in a yard at Pasco, Washington, in October 1971. The car is part of the 85100-85499 number series. Photo by GJ Werkema. Other subject classes: frieght car, open hopper car, Selectable Dump Ballast car

Northern Pacific 41.5-foot, open hopper car number 85132 in a siding at Belen, New Mexico, on September 17, 1989. The car is part of the 85100-85499 number series. Photo by GJ Werkema. Other subject classes: frieght car, open hopper car, Hopper

Northern Pacific 41.5-foot, solid-bottom, gondola car number 59563 in a train at Pasco, Washington, on February 14, 1981. The car is part of the 59550-59731 number series. Photo by GJ Werkema. Other subject classes: Car-Freight, Car-Gondola Steel, Ballast Car

Northern Pacific fire car 796, an ex-steam locomotive tender, next to the roundhouse at Pasco, Washington on May 11, 1982. Other subject classes: Car-fire

Northern Pacific fire car 796, an ex-steam locomotive tender, next to the roundhouse at Pasco, Washington on May 11, 1982. Other subject classes: Car-fire

Northern Pacific fire car 796, an ex-steam locomotive tender, next to the roundhouse at Pasco, Washington on May 11, 1982. Other subject classes: Car-fire

Northern Pacific crane 80 at Bellingham, Washington with crane water car 336; near Northern Pacific freight house; Warnick Lumber in background. Other subject categories: Crane, Car-Boom, MOW, Tender