Vintage Singer sewing machine low shank gathering / shirring foot in the blackside finish. This foot is compatible with low shank models including the 15, 27, 28, 66, 99, 127, 128, 185, 192, 201, 221 / 222K Featherweight, 306, 319, 328, etc. Very nice vintage condition, rust free. Genuine, original Simanco accessory #121441.