This antique original Singer sewing machine part is a must-have for collectors and enthusiasts. The motor mount bracket with plug and screw is a crucial component for the proper functioning of the machine. It is compatible with Singer 99 66 15-91 models and was manufactured in the pre-1930 era. The part number is Simanco and the maker is Singer. This item is perfect for those interested in the history of sewing machines and the antique industry.