Vintage Singer sewing machine rear circular cover plate, this one features the striated pattern. For use with the later model 66, 201 and 15 (15-88, 15-89, 15-90, 15-91). Thumb screw for mounting is included. Very nice vintage condition with typical signs of age such as surface scratching, the chrome remains bright & rust free. Original, genuine Simanco part #125425, many are not marked (or stamped very lightly) but are guaranteed to be genuine.