Butterfly Enamel Hinge Bracelet Set of 3

Lot of 3 hinged metal bracelets, each with matching butterflies in white, blue and black. A nice enamel cloisonne style. I do not know how these were manufactured, but they are not a high end product, so it may be mimicking genuine cloisonne. Nevertheless they are very pretty and look lovely stacked on the wrist. Opening of each is about 2 3/8". I do not know the base metal. Excellent condition.