Originally Posted by
Cari-in-Oly
By 1954 most manufacturers were making zigzag machines. Some were even that early making machines with cams for more stitches or built in cam stacks. very few if any that early had a blanket stitch. Blind hem yes, blanket stitch, no...
I'm almost sure the Elna Supermatic had a blacket sitch early on, it was introduced in 1952 with for the time an advanced cam mechanism. It's the earliest model I know who had double cams making stitch patterns combined with revers stitches. The Singer 401 introduced in 1958 with a similar cam mechanism should in theory have something similar to a real blanket stitch.