A model single horizontal water jacketed cylinder open crank gas engine, 1¼in. bore x 2in. stroke with counterbalanced crankshaft, twin flywheels, belt pulley, belt driven horizontal governor, linkage, and valves, cam operated bearing oil pump, carburettor and spark plug. Further details include gear driven camshaft with push rod operated inlet and exhaust valves, exhaust pipe and silencer, cooling tower and pipework, gas pressure reducing valve, finished in green, red and black. Wood base. Built by J. Cumberbirch -- 10 x 16in. (25.5 x 40.7cm.)