Massive Modernist Silver Ribbon Wave BroochVintage, modernist, silver toned metal brooch featuring brutalist styling in the form of an undulating wave embellished with a curled metal ribbon and some interesting pocks and striations. Truly a spectacular piece. No markings, not sterling. Deep blue agate or glass cabochon. 5 x 2. Pre loved condition w some surface wear present. Perhaps an eighties, big and bold piece but feels older like a mid century mod, coat, jacket lapel brooch. Would make a