Mexico 2017 20 pesos KM-989

from the Mountain Groan Collection

This specimen was issued by the Mexico City mint to honor the centennial of the constitution of 1917. Much amended, it is still in effect.

Recorded mintage: 7,000,000.

Specification: 15.95 g, bimetallic, aluminum-bronze outer ring with a copper-nickel center, 32 mm diameter.

Catalog reference: KM 989.

Sources:

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

Link to:

• 2016 20 pesos, 50th anniversary of the reorganization of the Mexican Air Force
• 2016 20 pesos, 50th anniversary of the reorganization of the Mexican Navy
• 2017 50 centavos
• 2017 5 pesos
• 2017 10 pesos
• 2017 media onza
• 2017 onza
• 2018 2 pesos, bimetallic
• 2019 20 pesos, 500th anniversary of the founding of Veracruz
• 2019 20 pesos, centennial of the death of Emiliano Zapata
• Coins and currency dated 2017
• return to Mexican coinage of the reform, 1994 to date