On Feb 11, 2009, at 11:03 AM, A. Premo wrote:

What are the prototypes for the Red Caboose 40 ' Auto Box cars?

Armand, I did an article on these cars in the Jan. 1998 Railmodel
Journal. Most 40' double door cars were 10'4" to 10'6" high with 5-5
ends, and thus can't be modeled with the RC kits. However, I found
two exceptions, SAL class AF-3 nos. 22300-22449 with round-cornered
ends and Soo Line 75800-75998 with square-cornered ends.

Richard Hendrickson