Northern Pacific Coach Number 586, at Joliet, Illinois, June 1972.

Northern Pacific Dome Coach Number 554, at Joliet, Illinois, June 1972.

Northern Pacific Sleeper Number 363, at Chicago, Illinois, May 1966..

National Railway Supply (NRS) Corporation passenger car 55 being switched by Chicago Northwestern (CNW) diesel locomotive 5501 at Proviso, Illinois on July 26, 1986. Photo by J.M. Fredrickson. Other Subject Classes: passenger car, diesel locomotive

National Railway Supply (NRS) Corporation full-dome passenger car 55 in a Chicago NorthWestern (CNW) switch job at Proviso, Illinois on July 26, 1986. Four CNW cabooses are in the consist. Photo by J.M. Fredrickson. Other Subject Classes: passenger car, diesel locomotive, caboose

National Railway Supply (NRS) Corporation passenger car 55 being switched by Chicago NorthWestern (CNW) locomotives CNW 5504 and 5501 at Proviso, Illinois on July 26, 1986. Photo by J.M. Fredrickson. Other Subject Classes: passenger car, diesel locomotive

National Railway Supply (NRS) Corporation passenger car 55 with Norfolk & Western caboose 555071 at the end of a freight train at Chicago, Illinois on July 25, 1986. Photo by J.M. Fredrickson. Other Subject Classes: passenger car, freight train, caboose

Great Northern Railway Postal Car 275, Baggage/Express/Storage Mail Car at Chicago, Illinois in 1970 Big Sky Blue color scheme. Other subject classes: Baggage/Express/Storage Mail Car, Postal Car

Great Northern Railway Passenger Car 1392, Full-length Great Dome Lounge Car at Chicago, Illinois in 1970. Big Sky Blue color scheme. Other subject classes: Dome Lounge, Passenger car

Great Northern Railway Passenger Car 1373, sleeper in Big Sky Blue color scheme at Chicago, Illinois in 1970. Other subject classes: Sleeper, Passenger car