Interesting steam engine model type "beam".
It is a massive fully operational and working model of a steam engine with vertical cylinder. It takes work at a pressure of about 0.8at. All engine parts are made of brass castings. The engine has a double acting spool valve timing.
Here are the specifications:
Outside Diameter of cylinder 40 mm Piston diameter - 19 mm Stroke - 38 mm Wheel diameter - 13 cm Height - 25 cm Weight 7 kg
PRICE: $500