I'm auctioning a beautiful model steam engine. It likely dates from the mid-1960s and was manufactured at a Polish science aid factory. The engine has been completely overhauled and has a new paint job. Some brass parts, such as the cylinder valve, have been added. Mechanically, it's in very good condition. It's ready to run on steam and compressed air. The total weight is approximately 9 kilograms. Please check out my other auctions.