Modernist Copper Calla Lily Brooch Pin. This Renoir copper brooch measures 3 inches long and 1.5 inches at the widest point which is the bloom of the trio of calla lilies. This piece is signed Renoir on the back of the brooch. Perfect for a vintage wedding jewelry or used as an accent piece for scarf, hat or coat. This Modernist enameled copper Calla Lily brooch is in very good condition.