Carved from a massive block of basalt stone in the early 16th century, the Aztec sun stone is an impressive design that showcases the calendar of the ancient Aztec Empire and the Mexica culture. The actual stone itself that this design is based on is 141 inches across, 39 inches thick, and weighs an astonishing 54,210 lbs. The design on the opposite side of these bars is also inspired by real life. Cuauhtemoc was the final emperor of the Aztec Empire and ruler of the city of Tenochtitlan. He was captured by the Spanish conquistadors sacking the city in August 1521 and eventually executed four years later by Spaniards under the leadership of Hernan Cortes. Contains 1 oz of .999 fine Silver. Individual rounds come in protective packaging. Multiples of 20 come in plastic tubes and boxes contain multiples of 500. Obverse: Depicts the famous Aztec Calendar stone. The design is in a circular shape resembling a sun, with rays emanating outward. In the center is the face of the Aztec solar deity, Tonatiuh, which gives the monolith its alternate name the Sun Stone. Reverse: depicts the striking left portrait of Cuauhtemoc, the last Aztec Emperor of Tenochtitlan. The name Cuauhtemoc means "Descending Eagle," as in the moment when an eagle folds its wings and plummets down to strike its prey. He wears the traditional headdress and ear ornaments of the Aztec elite, and is surrounded by an Aztec border as well as the inscriptions of his name and the metal content, weight, and purity. Made in the U.S.A.