Vintage Singer sewing machine sprung embroidery / darning foot, also known as the stripper foot. This foot replaces the needle clamp, so it makes a great option for free motion sewing with a back clamping 66 but is compatible with many models including the 15-30, 15-86, 15-96, 15-97, 15-87, 27, 28, 66, 99, 101, 127, 128, 185 *It is NOT compatible with the 221 / 222K Featherweight or 15-91 / 15-90. Very good vintage condition with minor signs of age, clean & rust free. Genuine, original Simanco attachment, part #86294