Thread Post for Vintage Singer Sew

Thread Post fits perfectly atop the Singer Featherweight 221, 222 plus any vintage Singer with a vertical spool pin on top of the machine (e.g. Singer 15, 66, 99, 127, 128, 185, 192 Spartan, 201, 237, 327, 328, 401, 403, 404, 500, and 503 – use far right pin on Slant-O-Matic & Rocketeer models).