Art Deco Revival Large Amethyst & Brass Brooch

Art Deco revival brass brooch with large beautiful amethyst stone. Lightweight brass setting. Marked on side of cabochon (I was unable to read the maker). Great vintage condition. Not sure if the tarnish is intentional as an artist piece. Will be sent as is. Maker/date unkown Brooch: 2 in. H x 3 in. W Cabochon: Amethyst