Here is an album of some snapshots of these machines
https://m.imgur.com/a/ABaE2
i don't remember my mother using these much, when she sewed I think she had a more modern looking machine somewhere.
some of these must have been my grandmothers she died years ago, my mother died a few years ago, these have been sitting around my fathers house. He is insisting we sell them, I'm guessing these aren't worth much. It's sad to let's these things go but the reality is we have no use for them or no storage space.
Any advice appreciated