United Mexican States, 50 Centavos 1917
Obverse: National arms, Eagle & snake.
Legend: ESTADOS UNIDOS MEXICANOS (United Mexican States).
Reverse: Value and date within 3/4 wreath with Liberty cap above.
Mintmark M, Mexico City, 37,112,0009.
Catalogue: KM# 445.
Silver, 0.800, 0.3215 oz. ASW, 12.50g, 30mm.