bkay, lucky you! To me the models still all look pretty much the same from model 15 to 101. Singers, while great machines, haven't really struck my fancy yet. I do know many of the decal sets though, so I'm not a complete goober.
MacyBaby, do you know why Singer used back clamping feet for the 66? I've always wondered about that. Did they just have lots of feet left over from the Wheeler & Willson 9/W9? I've also seen the back clamping feet on several W&W clones and one or two smaller manufacturers machines.
Do you have any of the glass inserts for back clamping feet? I think those are just the bee's knees! See through feet on an antique sewing machine, such a rare and wonderful treat!