Vintage 3 strand Sterling Silver Barse Thailand Turquoise toggle necklace 17.5”

Fabulous large turquoise smooth beads graduated draped necklace with the top necklace having 5 sterling beads, the middle 3 sterling bead spacers and the longest having 2 sterling bead spacers. with 2 & 3 sterling textured ball spacers. Toggle closure. Weighs 144.7 grams. Measures: 17.5" 19" middle, 20.5" longest strand. Each turquoise ovoid bead is varying long lengths up to approx. 25mm x11mm.