This is a simplified version of the vertical engine, without the belt driven countershaft. It has a round pressed steel base.
It is supplied with a standard Esbit burner.
The boiler is 50mm diameter x approx 80mm high, with a single centre flue. It has an overflow type water level indication and a safety valve.
The steam is fed directly to the back of the engine frame. The single acting oscillating cylinder is 8mm bore x 20mm stroke. The crankshaft has a 53mm diameter flywheel incorporating a 12mm diameter pulley.
The whole is fitted to a pressed nickel plated steel base.