MEXICO 10 PESOS 1981 UNC MIGUEL HIDALGO COSTILLA FACING LEFT,VALUE,NATIONAL ARMS,(Eagle on cactus facing left with snake in beak above wreath), with the inscription forming a semicircle above it,Script:Latin,Lettering:ESTADOS UNIDOS MEXICANOS,Reverse,Value,Portrait of Miguel Hidalgo Costilla to the left,Script:Latin,Lettering:DIEZ PESOS 1981,Edge,Smooth,Mint:Mo Casa de Moneda de México, Mexico, Mexico (1535-date)

SHAPE:Equilateral curve heptagon (7-sided)
WEIGHT:10g
SIZE:30.5mm
METAL:Copper-nickel (75% Copper, 25% Nickel)