Janey posted this yesterday on a thread in the quilt section about the same question:
"Just some general info regarding dates and who manufactured Kenmore machines can be found at
http://www.searsarchives.com/history.../sewing_id.pdf
http://www.doubleveil.net/zssmp/resources.htm near the end of the page (includes some not shown at
Sears Sewing Machine Manufacturer list addition )
Some manuals can be found at
https://www.manualslib.com/brand/ken...g-machine.html
Janey - Neat people never make the exciting discoveries I do.
Not affiliated with off-site link(s)
ETA the searsarchives pdf is searchable (Ctrl+F) which is what I would suggest. For the most part it is in numerical order, but I have found some that are out of sequence."
bkay