National Sewing Machine Company Vibrating Shuttle badged machine repair parts. Slide plate for front and rear. Nice working shape.  Solid metal rear piece measures 1 1/8" x 3 1/8". Marked "Notice...Number of cotton...Size of needle...Use only genuine needles". Front plate is alson in good working shape and same size. National "badged" many machines for Sears and Roebuck and Montgomery Wards stores/ Catalog sales.  This will work on all National VS machines.  This badged machine was a "Graybar". Price includes shipping to lower 48.