ABOX: A Two-door Version of the Railbox Part 1
Railroad Model Craftsman 1980-07 pg. 62 Scale: (none) Category: "Freight Cars - Boxcars"
Railbox is made up of high quality, free-running, general-service boxcars capable of running all of the nation. ABOX refers to those boxcars with 16-foot door openings rather than the default 10 feet. It has a 6-foot plug door added to the standard 10-foot door. These started appearing in May of 1978. The article includes prototype photos and scale drawings.