I've had a similar machine with those feet. Used it for over a year now once I got it working. Bought a few other
feet and attachments but it came with this big buttonhole attachment. Very sturdy machine ,,good for heavy sewing work so I am gifting to my nephew after all the hours I worked to get it to work.
Love these old Kenmores. Tried to get on yahoo group but for some reason a few yrs ago they refused with no idea why.
Kathleen