Steam Engine Sectional Demonstration Model

Locomotive design showing cross section of the piston and sliding valve as positioned in the steam chamber (Cylinder), clearly visible through air tight glass front and movement of these parts are smooth enough to demonstrate working even by blowing, Other parts are also clearly visible such as crankshaft, valve control, drive wheel etc. All brass parts (except fly wheel) are C.P., mounted on heavy metal base Synthetic Hammer finish.