Whitman Expo
1983-Mo Type 9, Olmec 20 Centavos PR KM-491 Values
Details
Obverse: Above a spray of oak and laurel, the national coat of arms depicting the eagle in profile to the left, with feathers resembling plates of armor. Above, the legend ESTADOS UNIDOS MEXICANOS.
Reverse: At center of a dodecagonal (12-sided) field, a large 20¢ with the date above and the mintmark M below. From upper left to lower right, a partial border of repeated Reed (Acatl) glyphs, representing the 13th-day glyph on the Aztec Calendar Stone.
Mint & Coinage Details
Mint Location:
Mexico City
Mintage:
50
Coinage Type:
Coinage Reform of 1905
Coinage Years:
1983-1984
Composition:
Copper
Mint Mark:
Mo
Varieties and Classification
Variety:
Type 9, Olmec
Variety 2:
KM-491
Physical Characteristics
Weight:
3.04 gr
Coin Rulers Name:
United Mexican States/Mexican Republic
Strike Type:
Proof
Diameter:
20 mm
Coin Shape:
Round
Design Details
Demonetized:
True
Obverse Lettering:
ESTADOS UNIDOS MEXICANOS
Reverse Lettering:
CULTURA OLMECA, Mo, 1983, 20¢
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