This sterling silver brooch has a beautiful design distinctly Mayan or Aztec influenced and made sometime early in the 20th century. The back shows signs of being hand-crafted, and is not marked; it acid-tested as 925 sterling silver. The wonderfully silky smooth rectangular green stone has some touches of creamy matrix. The pin back has a safety clasp and works perfectly. The brooch measures 1" x 2 1/4" and is in excellent, unpolished condition.