From the other reviewers,I agree. The "Funnel type smokestack" is the WILLIAM MASON steam engine seen in many a cowboy movie+Disney movies.
The collection houses the TOM THUMB also a copy? of the John Bull ??(not sure going on 40 year old memory); but, am sure that my father put both of them in the roundhouse 40 yrs ago.
If you look down at the floor intersection between turntable and floor,you will see 180 degrees apart-2 square holes. These were for placement of an oak rod to turn the turntable(with LOCOMOTIVE ON IT !) by hand. It is that well balanced!
Many other things to do here.I just hope the historians here have kept up there database.Thanks Rick