I have one of those coaches. I would have six, but I don't care for plastic models. Detail is superb! As soon as I turn on the big computer I will re-post the enhanced photos.
I was sure I had a Lobaugh 4-4-0 around here to compare - so far it hasn't turned up. If you do not see a joint, and the frame looks sand-cast, it is possible that Al Ellis' Lobaugh produced a few ten wheeler kits in the late 1940s.