It was not a manufacturing facility difficulty for that model. Maybe Imaginative crafting of a regular stock. Pics would help to find out the appx calendar year your rifle was made. forty four It had been offered from about 1959-1963. Yet another defining attribute of the JTSS could it be https://highimpactrounds.com/product/winchester-super-x-12-ga-2-75in-1-oz-8-lead-1290-fps-25-rd-box/