Rare Singer #22 Top Hat Cam #171335 and slant shank old-style snap-on overcast foot #161921

These attachments are for slant-needle Zig-Zag Singers which use top-hat cams,including 401A, 403, 500A, 503, 600 Series, and 700 Series machines.

“These Stretch Stitch Accessories were specifically developed by Singer to finish seams in one step in stretch material,and to make flexible stitch seams, hems,and facing edges in all types of knit, stretch, or elastic fabrics.In one step, you can join and finish, in one operation,seams that stretch with the fabric, and also stitch over the edge of the seam to enclose it,on your vintage Singer, and the Stitches will look very similarto a seam finished by a serger.The Overedge Presser Foot has a very necessary metal pin on the right side.The stitch goes over this pin to create the space in the stitch for the edging thread.Your normal zig-zag setting and your other special cams cannot do this stitch well,because it pulls the thread too tightly and bunches up the material…”from Singer