Northern Pacific boxcar 37423, at Pasco, Washington, June 1969.

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 53.5-foot, flat car number 62873 with a load of rail on a siding at St. Joseph, Missouri, in July 1990. The car is part of the 62700-62949 number series. Photo by GJ Werkema. Other subject classes: freight car, flat car

Northern Pacific 54-foot, flat car number 62475 in a train at Pasco, Washington, in October, 1971. The car is part of the 62300-62494 number series. Photo by GJ Werkema. Other subject classes: freight car, flat 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 Engineering Drawing: Yardmen's Service Building, Changes Account, Caboose Pooling Agreement at Pasco, Washington, prepared in 1968. Burlington Northern File Number 4632, Reference Number 10101, Sheet 14A.

Northern Pacific Engineering Drawing: Yardmen's Service Building, Changes Account, Caboose Pooling Agreement at Pasco, Washington, prepared in 1968. Burlington Northern File Number 4632, Reference Number 10107, Sheet 14C.

Northern Pacific Engineering Drawing: Yardmen's Service Building, Changes Account, Caboose Pooling Agreement at Pasco, Washington, prepared in 1968. Burlington Northern File Number 4632, Reference Number 10112, Sheet 14B.