Nice running original model#31 Serial #703949 I believe the S284 base was only used on 3 applications the Model#31, #32 washers and the rare vintage race cars. There is one fin broke off on cyl.The item "1936 Maytag Model 31 Engine Motor Hit Miss" is in sale since Sunday, October 6, 2019. This item is in the category "Business & Industrial\Light Equipment & Tools\Stationary Engines\Engines". The seller is "quadmark" and is located in Watertown, Wisconsin. This item can be shipped to United States.