1950s German three speed transmission, reverse hand crank

A very early 1930s German model of a single-cylinder motor that demonstrates how the piston, intake, exhaust and crank shaft work.

1930s German single cylinder motor, piston, intake, exhaust, crank shaft

A 1950s German model of a three speed transmission with reverse demonstrated with a hand crank.

1940s German over head cam, single cylinder engine

A press steel and cast iron model of a single-cylinder cutaway motor that demonstrates carboration as well as flywheel and piston operation.

An early driving school model of a single-cylinder flathead that demonstrates valve timing and carboration.

1950s German automatic transmission

A very rare 1940s German model of an over-head cam single-cylinder engine that demonstrates the technical functions of the motor. It shows rocker arms and valves, piston and crank shaft as well as timing. It is hand-crank operated.

A German driving school model that demonstrates how a clutch operates.


A very nice example of a 1950s German automatic transmission. This model shows diagrams of the valve body and ATF (automatic transmission fluid) flow, a wonderful functioning model.

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