Vintage tri color puka shell necklace (middle beads darker than pic shows) (mlb)

Super cute and different vintage puka shell necklace with tricolored center brown and turquoise separated by brass or copper colored pieces. Stretched out length is approx 18” not counting hook and eye closure. Color like the one on white background, please see slide. Condition is great commensurate with age. Beach, shells, puka, turquoise, unisex, heishi