Is that a flaw in the top right of the smokebox front? It almost looks like they filled in where the class lights mount on the 28072 tooling intsead of using the 38041 tooling that lacks the class lights.
I think Mr. Muffins custom run is the only one without class lights, so I suppose its "possible" they casted all the boilers and then made the correction for the Muffin order.
