4-8-2 light mountain prototype?

[sp4449lover]

hi everybody, i just recently got one of the 4-8-2 light mountains in the unlettered version. i'm not modeling a specific rr and i'd kinda like it to be accurate, so does anyone know what prototype bachmann based the light mountain on? it kinda looks like a drgw mountain to me but i'm not sure. thanks if you can help!

[skipgear]

As far as I know, it is based on the original USRA catalog version. This loco was released before Bachmann started doing road specific variations on their steam so it is about as generic a version as possible.