Aztec Sun Calendar Sterling Silver Key Ring

A very special key ring with beautifully detailed Aztec Sun Calendar medallion marked "Plafina Mexico Sterling" on the back, with an eagle hallmark indicating quality Mexican silver made between 1948-1979.  It has been paired with a classic horseshoe key ring, also marked sterling, with removable ball tip. The medallion measures 2" long, including attached ring and bail, and is 1 3/8" in circumference. Total length is 3" and weight is 26.3 grams.  Made from carefully selected vintage sterling silver components for a one of a kind piece.