Late 60s/ Early 70s Black & White Enamel Flower Brooch

This unusual enamel flower brooch features a black and white color combination. The bowl shaped flower has a zigzag edge instead of individual petals.  The top white layer has a pierced open work pattern that allows the black bottom layer to show through. The center is a black dome. This flower is unsigned. It measures approximately 2½” in diameter and is in excellent condition*.

*Very small areas of the enamel are worn away on the very tips of the flower petals.