Mexico 1855-Zs OM 4 reales

from the Mountain Groan Collection

Shown is an 1855Zs OM four reales, one of a type struck at the Zacatecas mint 1830-70. Assayer OM (Manuel Ochoa and Manuel Miner) is recorded for 1830-56. Ten mints (Mexico City, Guanajuato, Zacatecas, Potosi, Oaxaca, Hermosillo, Real del Catorce, Guadalupe y Calvo, Guadalajara and Culiacan) struck this type of which Guanajuato is tied with Zacatecas as the commonest mint. This date is common.

Recorded mintage: unknown.

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

Catalog reference: KM 375.9.

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.

Link to:

• 1854-Z^S 4 reales
• 1855-C ¼ real
• Chihuahua 1855 1/4 real
• 1855-G^A ¼ real
• 1855-G^A ½ real
• 1855-G^O ½ real
• 1855-M^O GF ½ real
• 1855-M^O GC ½ real
• 1855-P^I ½ real
• 1855-Z ½ real
• 1855-C^A real
• 1855-D^O real
• 1855-G^A real
• 1855-G^O real
• 1855-M^O real
• 1855-P^I real
• 1855-Z^S MO real
• 1855-Z^S OM real
• 1855-D^O 2 reales
• 1855-G^A 2 reales
• 1855-G^O 2 reales
• 1855-M^O 2 reales
• 1855-Z^S 2 reales
• 1855-G^A 4 reales
• 1855-G^O 4 reales
• 1855-M^O 4 reales
• 1855-P^I 4 reales
• 1855-C 8 reales
• 1855-C^A 8 reales
• 1855-D^O 8 reales
• 1855-G^A 8 reales
• 1855-G^O 8 reales
• 1855-M^O GC 8 reales
• 1855-M^O GF 8 reales
• 1855-P^I 8 reales
• 1855-Z^S OM 8 reales
• 1855-Z^S MO 8 reales
• 1855-D^O ½ escudo
• 1855-M^O ½ escudo
• 1855-D^O escudo
• 1855-G^O 4 escudos
• 1855-G^O 8 escudos
• 1855-M^O 8 escudos
• 1856-Go 4 reales
• 1860-C 4 reales
• Coins and currency dated 1855
• return to Mexican imperial and republican coinage, 1822-1905