Vintage Swarovski Aurora Borealis Choker

Vintage 1950s faceted Austrian crystal choker style necklace. Measuring 17 1/2 inches total length including 2 inch extension. 25 round crystals and 26 smaller bicone crystals. 5 bicone extension crystals on chain. Lobster claw closure (likely replaced the original hook clasp). Flashes of pink, blue, green and gold. Stunning! Very good vintage condition. Smoke free, pet free home.