Vintage Singer low shank sewing machine zigzag attachment. Compatible with low shank machines including the 15, 27, 28, 66, 99, 128, 127, 201, 221 / 222K Featherweight, etc. Comes with the edge guide, thumb screw for mounting and also an original or reproduction instruction manual. The attachment is in good working order, it is clean and rust free with typical signs of use. Genuine, original Simanco attachment, part #160620