Numbered Dial, Tension, Singer 221 & 222 Featherweight, and Singer 301
Numbered dial for the top thread tension unit for the Singer 221 and 222 Featherweight, and also the 301 & 301A.
This is the numbered dial only and does not include the index cup, spring, stop washer, or thumb nut. Those items are available separately, as is the complete tension assembly.
