Depicts the seal of the United Mexican States.

The Seal of the United Mexican States is a modified version of the national coat of arms, with the addition of the full official name of the country Estados Unidos Mexicanos, in a semi-circular accommodation in the upper part of the seal. Current and past Mexican peso coinage have had the seal engraved on the obverse of all denominations.

The coat of arms depicts a Mexican golden eagle perched on a prickly pear cactus devouring a rattlesnake. To the people of Tenochtitlan this would have strong religious connotations, but to the Europeans, it would come to symbolize the triumph of good over evil (with the snake sometimes representative of the serpent in the Garden of Eden).

At the center, the image of the reverse of a Zapatista revolutionary coin from Suriana, 2 Pesos 1915 (KM# 665); at the upper side, parallel to the coin frame, the legend NUMISMATIC HERITAGE OF MEXICO; on the left side, the Mexican mint mark, while on the right field is the $100.

In the heat of the battle, the Zapatista troops cast a small number of silver coins in the mineral deposit of Suriana, Guerrero, to overcome the scarcity of currency during the Mexican Revolution. These coins have a distinctive Zapatista design: a smoking volcano, mountains and, in the background, a glowing sun in the form of a human face; altogether surrounded by the inscription REFORMA (Reform), LIBERTAD (Liberty), JUSTICIA (Justice) Y LEY (and Law), and the word SURIANA, in the exergue.

This coin was issued by the Zapatistas under conditions where they were unable to part the gold from the silver, so they simply minted the alloy they had. Most were promptly melted down as the gold content made them worth more than face value. This issue has long been regarded as one of the key coins of the popular and challenging Mexican Revolution series. It is an extremely rare (less than 10 examples known) and among the most desirable Mexican Revolution era coins.