Mexico 1931-Mo 5 centavos
This specimen is the key date of a type struck 1914-35 at Mexico City. It was lot 9868 in Ponterio sale 151 (Baltimore, November 2009), where it sold for $11,500. The last branch mints, Zacatecas and Culiacan, were closed in 1905 and all official Mexican coinage since has borne the Mexico City mintmark ("M" or "Mo"). The previous nickel five centavos (struck 1905-14) were struck on blanks imported from Germany, a trade made impossible by the outbreak of World War One. The bronze five centavos was demonetized in 1936 and withdrawn in 1937. The 1931 five centavos, one of the major rarities of twentieth century Mexican numismatics, was apparently struck but never officially released. Most of the known survivors are in Very Fine or lower. There are also similar bronze one, two, ten and twenty centavos.
Recorded mintage: unknown but few.
Specification: 9 g, bronze (.950 Cu, .025 Sn, .025 Zn), 28 mm diameter, plain edge.
Catalog reference: KM 422.
- Michael, Thomas, and Tracy L. Schmidt, Standard Catalog of World Coins, 1901-2000, 47th ed., Iola, WI: Krause Publications, 2019.
- Buttrey, T. V., and Clyde Hubbard, A Guide Book of Mexican Coins, 1822 to date, 6th ed., Iola, WI: Krause Publications, 1992.
- Ponterio, Richard, and Kent Ponterio, Ponterio sale 151: The 2009 Baltimore Auction, Irvine, CA: Bowers and Merena, 2009.