Singer 401a Bobbin Thread Instructions

If you've already read the previous article "Bobbin Case Basics" you are probably thinking. How do I insert the bobbin on my Singer 401 or

1960 Singer Slant-O-Matic Sewing Machine Ad Woman in Green Evening Gown "What is zig-zag sewing?" Mad Men Vintage Advertising Art Print

Singer Sewing Centers ad showing a woman in evening wear leaning on a giant Singer Slant-O-Matic sewing machine

How to clean the camstack in your Singer 401a sewing machine - YouTube

The Singer 401 is a great machine. These wonderful machines also tend to get stuck due to poor maintenance and old dried oil.

Vintage Sewing Machines: Singer 401/500/600 Stitch Selectors

I have seen a couple of postings on forums recently mentioning that the stitch selector controls on Singer models or 600 no longer.