Hello people I recently acquired this off an elderly gentlman whos father was a cobbler..I think it is a sole stitcher But I have no idea...it has 'gritzner' and 'patent' printed on the side. It all moves smoothly and the bobbing has some thick thread still in it. It all seems intact just trying to do some research and maybe get it back to near its former glory. if anyone know absolutely anything that may help as I cant figure out how to even thread it yet haha xx