A Hohm driving school instructional scale model, German, post-War, large scale 'H-D 79' model, constructed from mainly metal and alloy parts, a functional model chassis, with articulating functioning controls, left-hand drive steering, lights, transmission, clutch, suspension, brakes, rolling wheels with rubber tyres, with some cut-away sections and other details including a clear plastic 4-cylinder engine casing showing workings of pistons, valves and spark plugs, the model 97cm long, mounted on a later display plinth with control levers and switches, with wiring and electric motor under the base operating model engine via drive-belt, measuring 103cm wide overall.