Wilson Begay, Navajo, and his wife Carol have worked together since the1960s to make cast coin silver items. Wilson does the casting and Carol does the lapidary and stone settings. This is a naja made of coin silver, 900/1000, and is 2 5/8" top to bottom. The naja has a hook to hang on an existing necklace. I bought it because the naja on my necklace lost its bail, but it is too big. Excellent vintage condition.