Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Ron, Doll and Carette both made versions of this engine. I will try to post some in for later this evening for you

As did Weeden.  Which is what I think you may have. It is a very rare model!  The dilemma is that yours has curved spokes in the flywheel and the pictures on the Weeden.com website show straight spokes.

http://weedensteam.com/unique.html#78

“The Weeden No. 78 has two round steel pillars supporting the engine. The cast iron base is 6" X 4", it stands 10" high. It was introduced in 1908 and produced for the next 10 years.”