J.J Gold and Silver Layered Brooch

Elegant Vintage gold and silver layered brooch with a unique design. The silver part of the brooch may be a layer of mother of Pearl. But I’m not 100%. Some of it had worn off a bit but it is only noticeable up close. No tarnish on the brooch. Stamped J.J on back. The back on the pin is a little loose. Bin: light pink