Thank you Thank you WIChix - it's the clasp that is missing. When I originally did a search on the Featherweight shop, I could not find a listing for the hinge, but now rechecked and found a listing for a clasp. They are sold out for now but at least now I know what I'm looking for. Also found a youtube video on how to pull the rivets out which I might attempt when I do find a set of clasps.
Also want to thank you Aurora for letting me know about the refurbishing info, I found that video.