Mexico 2021 20 pesos KM-997

from the Mountain Groan Collection

These specimens were issued by the Mexico City mint to honor the 500th anniversary of the refounding of Tenochtitlan as Mexico City. This example depicts the Aztec Temple of the Sun mirrored by the main cathedral which was built on top of it. The oblong patch on the obverse contains microengraving, an anticounterfeiting device. The twenty pesos was reduced from 15.95 g, 32 mm diameter to 12.67 g, 30 mm diameter, in 2019.

Recorded mintage: 30,500,000 of KM 997 plus 30,500,000 of KM 996.

Specification: 12.67 g, nickel brass center in an aluminum bronze ring, 30 mm diameter, interrupted reeded edge.

Catalog reference: KM 997.

Sources:

• Michael, Thomas, and Tracy L. Schmidt, Standard Catalog of World Coins, 2001-Date, 13th ed., Iola, WI: Krause Publications, 2018.

Link to:

• 2017 20 pesos, centennial of the constitution of 1917
• 2019 20 pesos, 500th anniversary of the founding of Veracruz
• 2019 20 pesos, centennial of the death of Emiliano Zapata
• 2021 50 centavos
• 2021 peso
• 2021 10 pesos, bicentennial of independence
• 2021 10 pesos, 500 Years of Historical Memory of Mexico-Tenochtitlan
• 2021 10 pesos, 700 Years of the Lunar Founding of Mexico City-Tenochtitlan
• 2021 20 pesos, 700th anniversary of the founding of Tenochtitlan
• 2021 20 pesos, bicentennial of independence
• 2021 20 pesos, bicentennial of the Mexican navy
• 2021 onza
• 2022 20 pesos, centennial of the Mennonites in Mexico
• 2022 20 pesos, bicentennial of diplomatic relations between Mexico and the USA
• Coins and currency dated 2021
• return to Mexican coinage of the reform, 1994 to date