Obv: National arms (eagle right with snake in beak, standing on cactus with laurel and oak wreath at bottom) with the legend “Mexican Republic” around and date below
Rev: Denomination within wreath with mint mark Zs, assayer’s initial Z and fineness above
Zacatecas Mint KM 403.10 90.3% Silver (ASW 0.0786 ounce), 18 mm
