This is a vintage necklace made of cobalt and clear glass beads separated by what appear to be sterling beads. The necklace is not marked. The sterling beads look like they might be hand made. The necklace measures 27 inches long. The blue and clear beads measure 13 mm. The necklace is in good condition but the silver beads do have an age patina and may need cleaning or polishing. Please let me know if you have any questions. Thanks for stopping by.