The 20 Peso Gold Coin was first minted in 1917 according to the characteristics of the Mexican gold coin reform of 1905. The eagle that appears on the reserve is based on the Mexican coat of arms used since 1825. The observe depicts the Aztec Calendar which was located in the "Temple Mayor" of the old aztec city and was destroyed by Hernan Cortes in 1521. The Aztec Calendar was later rediscovered in 1970 and to honor it this gold coin was introduced.
Mexican 20 Peso Gold Coin Design
The Mexican 20 Peso Gold Coin depicts on the obverse an Aztec symbol called The Aztec Calendar or Sun Stone. Under the symbol it displays the words "VIENTE PESOS" which mean twenty pesos and under those words it displays 15 gr. de oro puro which means 15 grams of pure gold. On the reverse it depicts a moderm version of Mexico's coat of arms with a left facing Mexican eagle eating a snake on top of a cactus.
Mexican 20 Peso Gold Coin Specifications
Minted Year: 1917 - 1921; 1959
Diameter: 27 mm
Fineness: .900
Actual Gold Content: 0.48227 troy ounce (15 grams)