This engine is complete,with a standard meths burner, pressure release valve, side water filling plug, motion speed control lever. This is not a forward & reverse lever. These engines drive in one direction only. It is set on a display board together with Mamod Drive shaft, Grinder wheels, Verical press, Drop hammer, and twin Buffer Polishing wheels. All of these tools are circa 1960s to 1970s and are complete with drive bands. The complete set is a fully working model. Note that Mamod often changed the boiler facing direction. In this case the meths burner is on the balance wheel side of the engine. Compare this with other models I have submitted.