Originally Posted by
sewbizgirl
Welcome, Frodo! Lovely Singer 66 "Red Eye" you have there. The knob on the right front is to set your machine to reverse. Only the later 66 models had that option.
Here is a link to the manual for that machine. I suggest you go through the whole thing from cover to cover and learn as much as you can.
https://a1sewingmachine.com/manuals/66.pdf
....
I think that what sewbizgirl meant to say is that the knob is for the stitch length. She is correct that only later 66 models had the option to reverse (which is a lever rather than a knob). Your machine is a straight
forward stitch only machine.
The link she gave is actually for an earlier model that the presser feet attached differently than your machine. The basic information is the same. Another manual for early 66 machines can be found at
http://ismacs.net/singer_sewing_mach...ine-manual.pdf There are some images that have back clamp presser feet and some side low shank presser feet.
The official name for the decals on your machine is "Scroll (red)", while there are many that call them "Red Eye,"
from my understanding Singer employees call the decals "Red Head."
Have fun learning to sew with your machine.
Janey - Neat people never make the exciting discoveries I do.