This is a vintage double strand necklace. The necklace is not marked. It has unique triangular shaped amber glass beads with a gold tone coating on portions of each bead. The necklace also has gold tone metal swirl beads and tiny gold tone spacer beads. The necklace is adjustable and measures from 15 to 17 inches long. The necklace is in good condition with minor loss of gold tone on the hook. It may need cleaning or polishing. Please let me know if you have any questions. Thanks for stopping by.