Railgon
Railroad Model Craftsman 1980-12 pg. 83 Scale: (none) Category: "Railroads"
In 1980 Railgon was added to the Trailer Train Company to provide shippers with a fleet of free-running gondola cars. Article includes prototype photos, scale drawings, and historical information about the company, including roster.
The First Five Years of RBOX 10013
Railroad Model Craftsman 1980-07 pg. 82 Scale: (none) Category: "Freight Cars - Boxcars"
The article details the history of this one box car with a listing of all the other boxcars, a map of the interchange points where this particular car has been sighted, and many close-up photos of the car.
Trailer Train's TTAX All-purpose Spine Cars
Railroad Model Craftsman 1991-10 pg. 62 Scale: Category: "Freight Cars - Roadrailers"
This article describes these cars in great detail. No modeling information is included, but there are lots of photos and many detailed scale drawings, as well as a roster list.
U-1 Wheel Stencils
Railroad Model Craftsman 1979-03 pg. 73 Scale: (none) Category: "Freight Cars"
Explanation of the yellow or white dots that appear in a black square on the side of freight cars. These indicate cars that are still equipped with sub-standard wheels. Many prototype photos are included.