In 2013 to celebrate the Numismatic Heritage of Mexico, Banco de Mexico released a Limited Issue Bi-Metal $100 One Hundred Dollar Silver Proof 6 Coin Set struck in Solid .925 Sterling Silver.
The obverse features an eagle battling a snake (Mexico's national coat of arms), which is surrounded by a wreath and the words "ESTADOS UNIDOS MEXICANOS". Encircling the center are ten eagle designs that have been used as National Emblems through the centuries, including one depicted in the 16th century Mendocino Codex, the date, and the name of the issuing country ('MEXICO').
