1953 Singer 15-91 Straight Stitch Sewing Machine in Bentwood Case. Superb machine for working with fine materials but also great for heavy materials. Easily stitched through 6 layers of denim or. 4 layers of 4 oz leather. Motor and worm gears cleaned and re-greased. Foot control adjusted for optimum control at all speeds. Every function works exactly as it should.