Antique Cameo Brooch 1920's 30's Plated Folded Frame

Shell cameo brooch of Greek or Roman goddess in toga. Palest pink shell. Fine features carved to face hair and dress in high relief. Gold plated, on probably brass, frame. Embossed for a wood or bark effect. Floral and leaf accents. Folded at the corners. c. 1920's or 30's 1 1/2 inch long Very good vintage condition. Small amount of wear to the plating on the back.