Stevens Model Dockyard Single Cylinder Marine Steam Engine.

A short video showing a Stevens Model dockyard single cylinder marine steam engine running on compressed air. The engine dates from around 1910, it has a bore and stroke of 3/4 of an inch. Bronze and steel construction, it is in pretty much immaculate condition and as good as the day it was produced. I have mounted it on a base for display purposes. As you can see the motor runs very nicely on compressed air.
Quite a rare item now.