Amtrak's Material Handling Car
Railroad Model Craftsman 1991-03
A prototype photo and scale drawings of this mail and express packages car accompany the article.
USRA Derivative Steel Boxcars
Railroad Model Craftsman 1995-01
Freight Cars - Box Cars
This article covers a particular sub-set of box cars (the article is somewhat confusing). It includes a number of prototype photos, as well as scaled drawings.