2023 1 oz Mexican Libertad Aztec Calendar Cyber Green Colorized Silver Coin. Quality: Colorization, 24k Gold Gilding. Metal Content: 1 troy oz. Diameter: 40.00 mm. This edition features an artwork of the iconic Aztec Calendar. It boasts a stunning Cyber Green colorization work. Mintage limited to 100 pieces. The colorization/plating on this piece was performed by an experienced third party company.