These cutaway models are carefully sectioned for training purposes, professionally painted with different colours to better differentiate the various parts and cross-sections. Many parts have been chromium-plated and galvanized for a longer life. A plastic-plated wooden base is the support of the main components of the Coil Ignition of a 4-stroke engine: battery, spark coil, coil, spark plugs. Rotating the flywheel, it shows the operation of the whole unit (the action of the platinum points and of the distributor can be observed through the section) and the spark flashing in the respective spark plugs is shown as well.
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