Mary See or Caesar?

When I was a kid, I thought the head on the needle threader was Mary See, of See's Candy, because that was the only cameo portrait I had seen. Mary See must have been a domestic goddess, in charge of candy and sewing. (I think in reality it is supposed to be Athena, goddess of needlework, but the image has been passed around through so many years it's starting to look a lot like Augustus Caesar).

The beads are a scarab thing I am making for Selket.