Vintage freshwater sea pearl double strand necklace with mother of pearl pendant

This is a beautiful vintage, natural freshwater sea pearl double strand necklace with a mother of pearl triangular pendant. White freshwater sea pearls with ivory straight spacer beads between two strands that clasp together at one end with a silver cog and wheel clasp (not magnetic). The other end displays a gorgeous triangular mother of pearl pendant which is 1.5 inches wide by 2 inches tall. Fastened the necklace has a 12 inch drop, when open the necklace is 20 inches long and double. Non-smoking home.