The photographer caught an express train just outside of town, passing by a local station. He was surprised to see a J1a, a fast freight locomotive, leading the consist. He guessed that some new Pennsy dispatcher saw the keystone number plate, not the round one used on freight engines, and assumed it was a passenger engine. Hopefully the RPOs did not need heat.
The J1a is Lionel TMCC upgraded with 4 chuffs/rev. The cars are mostly GGD, with Weaver and MTH