This 3 Oz Silver coin is the first release in the new Archeology & Symbolism series, dedicated to the most famous symbols in history. In this edition the Aztec Calendar Stone. The coin features the Smartminting technology, has an Antique Finish quality and comes in a beautiful case, along with the Certificate of Authenticity.Limited mintage to only 333 pcs worldwide! The reverse of the coin depicts the beautiful and wonderful detailed image of the Aztec Calendar. All around the reverse, the inscriptions: AZTEC CALENDAR STONE the name of the coin, 2018 the year of issue and TENOCHTITLÁN. The obverse of the coin portrays the effigy of Her Majesty Queen Elizabeth II next to a question mark full of unknown symbols and the inscriptions: ELIZABETH II the name of the Queen, COOK ISLANDS - the issuing country, 20 DOLLARS the face value and ARCHEOLOGY & SYMBOLISM the name of the series. Aztec Calendar The Aztec or Mexica calendar is the calendar system that was used by the Aztecs as well as other Pre-Columbian peoples of central Mexico. It is one of the Mesoamerican calendars, sharing the basic structure of calendars from throughout ancient Mesoamerica. The calendar consisted of a 365-day calendar cycle called xiuhpohualli (year count) and a 260-day ritual cycle called tonalpohualli (day count). These two cycles together formed a 52-year "century, " sometimes called the "calendar round". The xiuhpohualli is considered to be the agricultural calendar, since it is based on the sun, and the tonalpohualli is considered to be the sacred calendar. The item "AZTEC CALENDAR STONE Archeology Symbolism 3 Oz Silver Coin 20$ Cook Islands 2018" is in sale since Tuesday, September 4, 2018. This item is in the category "Coins & Paper Money\Coins\ World\Australia & Oceania\Other Oceania Coins". The seller is "powercoin_italy" and is located in Roma. This item can be shipped worldwide.