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).

Depicts the figure of general Emiliano Zapata Salazar, in the background, on the left side, a peasant farmer ploughing the soil. On the right side is a latent image of Mexico’s map and, in the upper part, on the hat, a micro text reading LAND AND FREEDOM. In the upper semicircle surrounding the edges of the coin, there is the legend "EMILIANO ZAPATA SALAZAR”. On the left side of the coin, there is Mexico’s mintmark, and, in the exergue, the "$20" denomination and the years 1919 and 2019.