Robert D. Heninger wrote:
"I am not sure what tooling Athearn is using for these cars, it doesn't
seem to be new, and I don't think any other HO model has this rivet
line present."
The tooling for these cars is relatively new; before the Horizon
takeover, MDC introduced a double door car based on their revised
prewar AAR boxcar tooling. These models have 4/5 Dreadnaught ends,
rectangular panel roofs, and the doors are molded on the carbody.
Ben Hom