@Hudson J1e posted:
And MTH also has the 4 wheel trucks from the 19th century passenger cars. Probably not prototypical either.
Oman, good question. On the 60’ Atlas cars they did use 4 wheel trucks. Perhaps Atlas will use those trucks? Hopefully most of these questions will be answered in their next announcement.
The MTH trucks are close, but the details are a bit outdated. The truck under most of those cars is the standard AAR 4 wheel passenger truck. I am using MTH 2 rail trucks on some All Nation cars I am working and they are close enough for me. The Atlas trucks are similar and likely a little more accurate for the era. All Nation's 4 wheel trucks are great, but they are not as easy to find based on the age of the castings.
The cars are mostly former Bethlehem steel commuter cars that were found on the Reading and CNJ.