I know they have several of these engines at the Western Museum of Mining and Industry near Colorado Springs. Minimal information on the site can be found at
[www.pikes-peak.com].
Also, the Anacortes Railway in Washington State has a steam locomotive built to resemble a small Forney locomotive which is built on the chassis of an 18" gauge air operated engine. The owner had a boiler built for the frame and converted it to a beautiful little steamer.
They are located at Anacortes Railway, 387 Campbell Lake Road, Anacortes, WA 98221. Telephone: (360)293-2634, Email:
cbrannon@moscow.com. Location: 7th Street and R Avenue.
Hope this is some help.