About the Design:

Obverse
The national emblem of Mexico depicting a Mexican golden eagle perched on a prickly pear cactus devouring a snake above a half-wreath of oak and laurel below and the legend “ESTADOS UNIDOS MEXICANOS” forming the upper semicircle.

Lettering: ESTADOS UNIDOS MEXICANOS

Translation: United Mexican States

Reverse
At center, the denomination $1 with the date above and the mint mark Ṁ to the right. On the outer ring, the stylized designs from the Ring of Splendor (Anillo del Resplandor) on the Aztec calendar stone (Piedra del Sol).

Lettering:
2017
$1
Mo

Composition    Bimetallic: aluminium-bronze center in stainless steel ring
Weight           3.95 g
Diameter    21 mm
Thickness    1.6 mm
Shape            Round