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

Illinois Central Railroad Company depot at Winona, Illinois, circa 1890. J.M. Fredrickson collection. Other Subject Classes: depot

Illinois Northern Railway Alco S-4 diesel locomotive number 30, circa 1970 at an unknown location Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Illinois Northern Railway Alco S-4 diesel locomotive number 30, circa 1970 at an unknown location. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Illinois Terminal Railroad Company diesel locomotive number 2294, an Electro Motive Division (EMD) SW1500, at Calumet, Illinois, on July 25, 1986. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive , switching locomotive.

Indiana Harbor Belt Railroad diesel locomotive 8791 at Proviso, Illinois on July 26, 1986. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Indiana Harbor Belt Railroad diesel locomotive 8817 at Proviso, Illinois on July 26, 1986. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Indiana Harbor Belt Railroad diesel locomotive 8834 at Proviso, Illinois on July 26, 1986. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive