24-inch Black Thermoplastic Bead Necklace-1960s

Long 24-inch necklace of black vintage thermoplastic beads. The oval bead sized range from 1/4-inch to 5/8 inch long, the smallest at the neck around the gold-tone ring clasp. The twisted silk cord is sturdy, with no gaps. And as a sign of quality, the cord is knotted between each bead. From about the 1960s. N-365