This 8 long rack made of RED plastic has a round channel that holds bobbins on an embedded magnetic strip. Each bobbin is tightly anchored on its rim.
Bobbins – The Singer Featherweight Shop
1950 Ruby Red Singer 221 Featherweight - US Voltage. – Fabulous
Bobbin Holder
bobbin case - The Singer Featherweight Shop
Brother SA159 Metal Bobbin
SOLD! Click on the link below to see what is available in our store., This
1951 Singer Featherweight Torch Red 221 Sewing Machine. Restored.
Bobbins – The Singer Featherweight Shop
red s - The Singer Featherweight Shop
NeedlesPinsSewOn
The Singer Featherweight Shop – Page 11