It has cam actuated admission valve gear and directly actuated exhaust valves. The admission and exhaust valves are actuated by separate eccentrics and controlled by a shaft governor. The piston valves can easily be expanded to compensate for wear.
The engine was installed in the Noone Textile Mill in Peterboro, NH in 1905 and used to make woolen products. The engine was rigged out of Peterboro, NH by Gib Conover, Roger Dowdell, and Robert Merriam.