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 Mo, assayer’s initial B/G and fineness above
Mexico City Mint KM 403.7 90.3% Silver (ASW 0.0786 ounce), 18 mm
