It's a 66-16 in a #56 cabinet. Neither rare nor antique. I bought one at Good Will just two days ago for a paltry $20.00.
Here's a bigger picture of the one in the add:
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I wouldn't offer him more than $50.00 tops and I'd tell him it's not rare at all. Singer made millions of the things.
As far as wanting to sew with them, why not? That's what they were made for. I use mine, so does my wife.
Joe
Last edited by J Miller; 10-14-2013 at 09:02 PM.