This is a very rare and complete including the original manifold and pressure gauge Stuart Sirius was used to run the Stuart compressor in my other listing. This same model was used in WWII to run the Stuart Firefly generating set to charge radio batteries. This engine has its serial number on the cylinder head casting as shown in the pictures. This engine runs very smoothly at few pounds with no play, very good compression, in superb condition overall. Particular attention was given to the valve gear and steam passage design with the result that the engine produces great power using a surprisingly low volume of steam. Our tests have shown that running at 2800 rpm the engine produces 1/3 bhp. The item “Live Steam Engine Stuart Turner Sirius Factory Built 1940′s WWII Hit Miss” is in sale since Friday, September 18, 2020. This item is in the category “Toys & Hobbies\Vintage & Antique Toys\Tin\Other Vintage Tin Toys”. The seller is “toypizza” and is located in Barnard, Vermont. This item can be shipped to United States.