The imagery that conforms the coat of arms emblazoned on the central white band of the Mexican flag is quite complex and unique; it is also called "El escudo nacional" ("The national shield") and it appears as a seal on official government documents, such as passports, and on the back of all Mexican coins; the theme of an eagle standing on a paddle cactus plant comes from the legend of the foundation of Tenochtitlan, the capital of the Mexica civilization … click on title for more
My Slice of Mexico 