Vintage NAVAJO turquoise silver onyx white double strand beaded necklace

Double strand vintage necklace from the early 70s. Genuine silver that I have photographed in it’s tarnished state. Cleans up beautifully! This is a handmade piece by an unknown Navajo artist the necklace clasp is a screw style for security. Very good wear for its age, all parts are original to the piece. The longest center onyx bead snapped which is reflected in the price of the necklace. I was going to have a jeweler just remove the centerpiece but decided to list it here first