Sparkle and shine while wearing the Silver Mercury Dime Aurore Boreale Crystal Drop Double Strand Necklace and Earring Set. An Aurora Borealis Crystal hangs from a genuine Silver Mercury Dime set in a round silvertone bezel and together are the focus of this glamorous necklace and earring set. The Mercury Dime was minted from 1916 to 1945 and is composed of 90 percent silver. The double strand necklace is 18 inches long and has a lobster claw clasp for security. The necklace is composed of brass and pewter and is layered in rhodium. The dangle style earrings have a fish hook closure and measure 2.5 inches in length. A Certificate of Authenticity is included. The set comes in a brown presentation gift box. Mint marks and years will vary.