This vintage necklace is hand-crafted, unsigned, cloisonne and Limoges-type enamel on copper in darkly patinated copper to imitate old bronze. The pendant is 2" by 1", and 1/4: thick. The chain is 18 inches. It is not complex cloisonne, but the use of foil and warm hues combine in a lovely illuminated portrait. It's in excellent condition. I don't know how old it is but am very sure it is of recent vintage.