I work on a Singer 401A which looks like the same machine you have. I have had it for over 50 years and love it. Last metal head Singer made I believe. They aren't worth much on the open market (I was offered $26. on a trade in if I would get rid of it on my own!)but I wouldn't trade it for the world. I have the card table with inset for machine that came with it for an extra $10!