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 Morelos Insurgent coin, 8 Reales 1814 (KM# 234), Mexican War of Independence; 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.

To alleviate the lack of cash to pay and feed his troops, José María Morelos y Pavón ordered that his own coins be minted. Thus copper coins equivalent to “coupons” or “promises to pay” were minted that would be exchanged for silver or gold at the end of the war. Consequently, such coins are considered Mexico’s first fiduciary coins and due to their design, the first real Mexican coins.

Design depicts a bow, arrow, SUD (SUD means 'South', the part of the country where the insurgent forces were based) in floral ornamentation.