A very unique scale model which I believe to be a hot air engine. The single cylinder is surrounded by a water hop (possibly for cooling?). The model has good compression although is untested. An unusual engine which sadly is lacking provenance (unknown maker and age). Fitted with an oil lubricator. Some dimensions shown in the photos however if more are required or you have any questions please ask.

I have since been informed this is a flame licker engine. Thank you for the interest.