Like most older Native American jewelry, this piece is not stamped or hallmarked for silver content. It is sterling or a slightly lower grade of silver. I've left the original patina. The item "VINTAGE NAVAJO INDIAN SILVER TURQUOISE FIGURES & THUNDERBIRDS CUFF BRACELET" is in sale since Wednesday, March 22, 2017. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Vintage Ethnic/Regional/Tribal\Native American (pre-1935)".The seller is "deja--voodoo" and is located in Santa Cruz, California. This item can be shipped worldwide.