Reverse In the central part, the numeral 1, behind it a Latin letter 'C' crossed by a diagonal line, its field shaded with horizontal lines. The upper (right) end of the diagonal line extends beyond the letter, the lower (left) end is in front of it. Along the edge of the coin are decorative elements in the form of dentils, around which: at the top the year of minting '1913', to the left and right laurel branches, tied at the bottom with a ribbon forming a bow, below it the mint mark 'oM' - Mexico City, Mexico.
Obverse In the central part is the coat of arms of the Mexican Republic: an eagle (facing left) perched on a cactus with wings spread, holding a snake in its beak. At the top, along the edge of the coin, the name of the state in Spanish 'ESTADOS UNIDOS MEXICANOS' (UNITED MEXICAN STATES), below a branch of oak and laurel, tied with a ribbon forming a bow. Along the rim are decorative raised dentils.