J06D World's Smallest Vertical Stirling Engine Model

This is a vertical Stirling engine model , a very small version model . crafted from brass and stainless steel , is designed with an upgraded base made of aluminum alloy . The engine is designed to fit in show - cases and desk table model . This is a Stirling engine model made by the Vintage model workshop chaired by Mr. Jin. As far as I know these are the smallest scale model stirling engines ever made - until you make one smaller . ITEM SPECIFICS .Brand:OKMO .Name: Hot Vertical Stirling Engine Model .Material: Brass + Stainless Steel + Aluminum .Flywheel Diameter: 29mm (Including Pulley) .Start Method: Manual .Fuel: 95% Purity Alcohol .Product Weight: 114g .Product Dimensions: 62x 42x 72mm