Tension Unit, Singer (Vintage Original) - NUMBERED qp You can see in the

You can see in the antique baby garment how a similar effect was accomplished with the thread weaving in and out forming a wave-like effect

Original Case (lovely condition)

We are very excited to add this lovely 1933 Featherweight 221 to the site

The small screwdriver has a magnetized tip

The smaller screwdriver - perfect for the gib hook screw

Tension Unit, Singer (Vintage Original) - NUMBERED qp You can see in theOriginal Singer Tension Unit for the Singer 221 and 222 Sewing Machines. Slack Regulator sold separately. It really is a matter of ease and preference, but if your old Singer Sewing Machine, including but not limited to the Featherweight 221, has one of the old style Tension Units then you might consider the option of switching it to a numbered tension unit. You can replace them with an original from another old Singer Featherweight machine, which is