Obverse
National arms, eagle left
Lettering: ESTADOS UNIDOS MEXICANOS
Reverse
Monarch butter flies
Lettering: 1987
PLATA
.720
$100
MARIPOSA
MONARCA
MO
Extended information
Year
Denomination
Currency
Metal
Krause catalog
KM# 537
Weight
32.63 g.
Diameter
38
mm.
Series
World Wildlife Fund
Alignment
Coin ↑↓
Shape
Round
Edge
Plain