Vintage multi-chain necklace with simulated rubies

Beautiful necklace from the 80’s, with an Art Deco design. Three delicate brass chains lead into a series of 15 glass, mirror backed synthetic rubies with the largest on the bottom. Necklace is 22” long + has a 3 “ extension. Largest stone is 5/8” by 1/2”. In very good condition overall with minor wear, the backing on two of the stones has worn off, which shows slightly on the front, please see photos.