I have a question and hope someone can help.... I have search everythings on the nets looking for informations ..... we have sold our house and was cleaning out the garage we ran across an old singer sewing machine in the back shelf on wall with a tan case and dark brown botton the only things is does not have a letter before the serial number so can someone help me please the serial nu. is 9127088 p.s. in process of cleaning the machine any help would be appreactiated ty