How much do the plywood boxcars of the 40’s look from the 1937 cars they were adapted from and any outside visual clues?
Are you talking about the cars that were rebuilt with plywood sides or cars that were built to carry plywood?
A lot of the boxcars were double door, but with a door-and-a-half instead of two full doors. Here is a car I built years ago, following a plywood carrying Central of Georgia 1937 AAR prototype, using an IMWX single door car with narrowed Red Caboose doors. I used styrene to add the door tracks and the narrow door edge…
Was talking plywood sides.