ussr raritet, 1 cylinder internal combustion engine training model
Here is a tutorial showing how a single cylinder engine works. 
When the handle is turned, the shaft rotates, the piston rises/lowers, the valves open/close, the lamp limits the candle's work according to the stroke. 
Made of metal, weighs -4 kg. 
The height of the model is 35 cm
Will be sent to you without LiPo battery, POST OFFICE PROHIBITED. 
Made in USSR, 60-80 years.
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Information for buyers outside the European Union: after purchasing the product, you will have to pay extra
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