Shop › Vintage Turquoise necklace circa 1940's/50's Image 1 of 1 Vintage Turquoise necklace circa 1940's/50's $475.00 A vintage tapered Turquoise necklace from the 1940’s or 50’s. This necklace is 17 inches long with three white shell pieces at the bottom. Add To Cart Added! A vintage tapered Turquoise necklace from the 1940’s or 50’s. This necklace is 17 inches long with three white shell pieces at the bottom.