M30 3.7CC Vertical Retro 2-Cyl Double-Acting Steam Engine Model w/ Speed Reducer

M17 Mini Hit and Miss Engine 1.6cc Four-Stroke Water-Cooled Gas Model

OKMO M30 3.7CC Retro Vertical Double-Cylinder Double-Acting Steam Engine Model

Full Metal Stationary Steam Engine Model Kit & Boiler With Generator Street Lamp

1.6cc Dual-Flywheel Evaporative Water-Cool Horizontal M25 Mini Var-Speed Engine

OKMO M93 6CC Horizontal Water-Cooled Gasoline Speed-Adjustable Hit & Miss Engine

OKMO M17 1.6CC Mini Water-cooled 4-stroke Horizontal Hit-Miss Gasoline ICE Model

THE FLAME EATER The Fantastic Vacuum Engine real running scale model engine Nice