Antique Shell Cameo

I purchased this in the 1970's from an antique dealer. I have not seen another face like it with the raised element of the hair comb. This finely carved cameo in antique coin silver,hand carved shell, brooch pin or necklace has marcasite details and pendant hardware.This piece is in very good condition with some wear, less than you would expect of a piece of this age. Marked 800 which is an alloy of silver that is 800 parts silver and 200 parts other metals. It is also referred to as International Coin Silver. This alloy was common in the 19th and early 20th centuries on the European mainland but was not used in jewelry in the United States. The chain is not marked. Slightly over 1" tall and wide, chain is 16".