Number Indicator, Singer Featherweight Tension Unit (Vintage Original) vntsale This buttonholer is still preferred

This buttonholer is still preferred by long-time sewists

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

A SINGER Attachments Set

I have only ever had one complete set

The Tan Featherweights are one of the rarest to find because there were so few of them made

Number Indicator, Singer Featherweight Tension Unit (Vintage Original) vntsale This buttonholer is still preferredThis is the numbered portion of the indicator that gives you a reference for thread tension. The part is an original piece in excellent condition that has come off of a Featherweight tension unit. If you would like to purchase a complete tension unit, click here. Check out our blog post tutorial if you need to know how to assemble the tension unit, or if you are not sure about what part you need.