This is a gorgeous piece! Silver over brass intricate filigree. Larger plaques are set with a blue glass Moonstone cab. Not a choker, it wears high around the throat. Much of the silver wash has long since worn away leaving this piece with a wonder rich and warm patina. Probably Czech in origin. The original tattered grosgrain ribbon ties (fastener) were removed and replaced with a vintage spring ring clasp for ease in wearing. 12 1/4" in length, an extender is easily added at your request. 1920 and in very good condition.