Vintage Natural Puka Shell Necklace with Dyed Turquoise Howlite

Vintage Puka shell necklace with three dyed howlite  stones. The puka shells are very high quality natural shells that were bleached white by the sun. The holes are not drilled, but natural. They are all in the 8mm to 9mm in diameter size range. Original barrel clasp. It measures 19" long. Weight: 70 grams.