Vintage Rhinestone Earrings Drop Dangling Clip On Ball

Vintage Probably from the 40’s or 50’s. In nice vintage condition. All the crystals appear to be there, some have darken slightly with age. I have NOT cleaned them. They are clip on. About 2 1/4" from top of the curve to base of the ball. Very hard to measure accurately. They are unbranded. I do see (I think, it is really small) Pat. Pend on the clip on piece.