Models View all 1-cylinder horizontal steam engine non reversing 12 149 0 60HP High Pressure Steam Engine 13 153 1 Twin-cylinder_steam_engine (Dyn_Sim) 12 108 0 Twin-cylinder_steam_engine 7 69 0 Cycloidal Gear (high reduction) 10 133 4 Cycloidal Gear 4 149 0