Vintage statement/bibb necklace

Stunning vintage bib necklace in silver and gold. I've tried to research this particular necklace to find out where it came from or who made it and there aren't any markings on it nor is there anything online that looks like it, so I would guess this is probably a rare find! currently is about 15 and 1/2 in long but there is extra chain to lengthen it.