Mexico 1840-Zs OM 4 reales

Ponterio sale 169, lot 11267

This specimen was lot 11267 in Ponterio sale 169 (Baltimore, November 2012), where it sold for $822. The catalog description^[1] noted, "MEXICO. 4 Reales, 1840-ZsOM. RARE date. Areas of striking weakness at rims. Toned. VERY FINE." Assayer OM is recorded for 1830-55; four reales were struck at Zacatecas 1830-70. Ten mints (Mexico City, Guanajuato, Zacatecas, Potosi, Oaxaca, Hermosillo, Real del Catorce, Guadalupe y Calvo, Guadalajara and Culiacan) struck this type of which Zacatecas is tied with Guanajuato as the commonest mint. This particular date is rare.

Recorded mintage: unknown.

Specification: 13.54 g, 0.903 fine silver, .392 troy oz ASW.

Catalog reference: KM 375.9.

Source:

• Buttrey, T. V., and Clyde Hubbard, A Guide Book of Mexican Coins, 1822 to date, 6th ed., Iola, WI: Krause Publications, 1992.
• Michael, Thomas, and Tracy L. Schmidt, Standard Catalog of World Coins, 1801-1900, 9th ed., Iola, WI: Krause Publications, 2019.
• Utberg, Neil S., The Coins of Mexico, 1536-1963, San Antonio, TX, 1963.
• ^[1]Ponterio, Richard, Ponterio sale 169: The November 2012 Baltimore Auction, Irvine, CA: Stack's Bowers, LLC, 2012.

Link to:

• 1839-G^O 4 reales
• 1839-Z^S 4 reales
• 1840-G^A ½ real
• 1840-G^O ½ real
• 1840-M^O ½ real
• 1840-G^O real
• 1840-Z^S real
• 1840-G^O 4 reales
• 1840-C^A 8 reales
• 1840-D^O 8 reales
• 1840-G^A 8 reales
• 1840-G^O 8 reales
• 1840-M^O 8 reales
• 1840-P^I 8 reales
• 1840-Z^S 8 reales
• 1840-M^O ½ escudo
• 1840-G^A 2 escudos
• 1840-G^O 4 escudos
• 1840-D^O 8 escudos
• 1840-G^O 8 escudos
• 1841-Z^S 4 reales
• Coins and currency dated 1840
• return to Mexican imperial and republican coinage, 1822-1905