I just bought a button holer that I thought would fit on my 401A, but am now unsure and need help. It is aSinger Professional buttonholer and says it is for vertical zigz-zag sewing machines. In the book it shows 3 different cover plates. I have the # 86748, and it says that is for vertical-needle zig-zag sewing. Will that one work with my machine?
Thanks for any help you can give me. I'm totally new concering these slant shank sewing machines.