Vintage handmade damascene ring with real 24K or 22Karat yellow gold, adjustable

Vintage one of a kind handmade black and gold ring. Adjustable size, from 6.5 and up. Made using the ancient Damascene technique where the real 24 Karat or 22 Karat gold foil is hand hammered into the oxidized black metal. Gold plated back and band, with some plating wearing out, mostly on the back. Otherwise in excellent condition.