I worked to re-create an uncluttered 431G manual that included the information for chain stitching.
This document is a combination of other information I found online.
I have spent hours cleaning the graphics and re-typing portions of the text to match the original document. I have done my best to update the diagrams and page references.
This should be very close to the original 1963 Singer Manual.
Note: This is a 108-page, color manual. It will take a little time to load.