Tension Release Lever, Singer 221 & 222 Featherweight
Tension Release Lever for the Singer 221 & 222 Featherweight. This is the internal lever which when you lift up on the presser foot lever, presses against the release pin on the top thread tension and releases the spring pressure on the tension disks, allowing you to remove the work from the machine.
Original Singer part and includes the small return spring and attachment screw.