PRR S-1 (PM).
No rotted tubing, as I first suspected on the universal as it's all made out of brass.
The linkage was just not engaged.
A large pitman motor. Some oil on the front/rear via the cotton material surrounding the armature shaft.
The linkage to the front drivers was not engaged.
Some oil in the gear boxes, axles and side rods.
The front drivers are screwed to a piece of bright thin metal that rotates.
Instead of lead for weight, they used a solid piece of brass.
Thinking about it, the foam box was probably one of the first used as most engines came in cardboard tubes instead of foam back in the early 60's.
No need to drill out to get to the classification lights as they left a hole in the boiler (center, right in picture).
They even made a builders plate for it.
