This item is likely a commemorative piece from the enthronement ceremony and Great Thanksgiving Ceremony of Emperor Shōwa held in Kyoto in November 1928 (Shōwa 3). While there are no noticeable scratches or stains, it is an old item, so there are some minor scratches and scuffs, indicating it has been stored for a considerable period. The size is approximately 9cm in diameter and 3cm in height.