Mexico 1854-Pi MC 1/2 real

Ponterio sale 159, lot 8164

photo courtesy Ponterio & Associates

This type was struck at San Luis Potosí 1831-63, with assayer MC listed for 1849-59. This specimen was lot 8164 in Ponterio sale 159 (Baltimore, March 2011), where it sold for $862.50. The catalog description^[1] noted, "MEXICO. Potosi. 1/2 Real, 1854-PiMC. NGC MS-64." This specimen was offered again as lot 72229 in Stack's Bowers June 2026 World Premier Collectors Choice Auction (Costa Mesa, CA, June 2026), where it sold for $732. The SCWC lists this date as common.

Recorded mintage: unknown.

Specification: 1.69 g, 0.903 fine silver, .049 troy oz ASW.

Catalog reference: KM 370.10.

Source:

• Busse, Dave, A Minor Challenge: A Study of Mexican Republic Silver ¼, ½, 1, 2 and 4 Reales Die Styles,, Harlingen, TX: 2018.
• 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 159: the March 2011 Baltimore Auction, featuring the Len Novotny collection, Irvine, CA: Stack's-Bowers & Ponterio, 2011.

Links to:

• 1853-P^I ½ real
• 1854-G^A ¼ real
• 1854-SLP^I ¼ real
• 1854-C ½ real
• 1854-D^O ½ real
• 1854-G^A ½ real
• 1854-G^O ½ real
• 1854-M^O ½ real
• 1854-Z ½ real
• 1854-C real
• 1854-D^O real
• 1854-G^O real
• 1854-M^O real
• 1854-P^I real
• 1854-Z^S real
• 1854-C 2 reales
• 1854-G^A 2 reales
• 1854-G^O 2 reales
• 1854-M^O 2 reales
• 1854-Z^S 2 reales
• 1854-G^A 4 reales
• 1854-G^O 4 reales
• 1854-M^O 4 reales
• 1854-P^I 4 reales
• 1854-Z^S 4 reales
• 1854-C 8 reales
• 1854-C^A 8 reales
• 1854-D^O 8 reales
• 1854-G^A 8 reales
• 1854-G^O 8 reales
• 1854-M^O 8 reales
• 1854-P^I 8 reales
• 1854-Z^S 8 reales
• 1854-C ½ escudo
• 1854-D^O ½ escudo
• 1854-M^O ½ escudo
• 1854-C 8 escudos
• 1854-G^O 8 escudos
• 1854-M^O 8 escudos
• 1855-P^I ½ real
• Coins and currency dated 1854
• return to Mexican imperial and republican coinage, 1822-1905