These Dimes Have Been Reported To Consist Of 90% Silver And 10% Copper. Artist Hallmarks: "J Mc, Navajo" (inscribed on one sterling silver cone). Materials/Technique: Hand Strung And Hand Soldered 35 Mercury Head Dime Beads (Consisting Of 70 Mercury Head Dime Halves) With Kingman Turquoise Bead Spacers; Sterling Silver Cones, Link Chains With "Hook & Eye" Connector Positioned On Opposite Ends; Mercury Head Button Soldered On Top Of "Hook" Connector. The item "Mercury Head Dime Bead Necklace By Navajo Artist James McCabe" is in sale since Saturday, October 19, 2019. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Necklaces & Pendants".The seller is "silvertq" and is located in Fort Collins, Colorado. This item can be shipped worldwide.