This is an original vintage SINGER power plug in.

It has 3 pin round holes.

These terminals are used to connect the Singer SIMANCO foot pedal to your Singer sewing machine.

This does not work on a white Featherweight.

These electrical plugs were removed from Featherweight sewing machines and was fully functional. 

Please take a look at the pictures, because it forms part of my description.

If you have any questions please contact me before buying.

$10. each. 

Free shipping to USA or Canada.

Thank you for your interest.