This is a vintage souvenir charm or pendant from the Grand Ole Opry in Nashville, Tennessee. The charm is not marked. It has blue enameling on it. There is a guitar and musical notes in the center. The charm measures 5/8 of an inch in diameter. The charm is in good condition with minor, if any, missing gold tone. The charm has not been cleaned or polished. Please let me know if you have any questions. Thanks for stopping by.