Vintage 925 Sterling Silver Mexico Aztec Mayan Calendar Brooch Pin. This stunning Mayan brooch pin is made of 925 sterling silver, with intricate Mayan theme detailing that will make it stand out in any jewelry collection. The round shape and antique style of this vintage piece make it unique. The use of high-quality sterling silver ensures its durability and long-lasting beauty. The absence of any main stone color makes it versatile and suitable for any occasion, while the 925 metal purity and base metal silver make it a valuable addition to any collection. The pin closure has slight bend; it does not affect the closure. What you see in pictures is the product you are receiving.