AVON Smithsonian Institution Key to the Castle Sunburst Necklace

From 1996 AVON worked together with the Smithsonian to reproduce this necklace for short time. This elegant piece is in lovely collection but I do not have the original box “Smithsonian” is embossed on one side of the key. Chain is approximately 30” with 3” drop Sorry - I can’t entertain offers less than asking price as this is a RARE museum-like piece. From a smoke free home.