Welcome to the Quilting Board!
I have a 99 clone that says "made in occupied Japan," but I haven't found a lot of the 99 clones either.
Photo #2 is a zipper foot
Miriam uses toothpaste to clean the attachments, I haven't tried it yet, but I'm going to!
One day, you'll only be a memory for some people. Do your best to be a good one.