Mexico 1918-M 50 centavos 27mm
This specimen is one of a series struck 1918-19 at the Mexico City mint. A scarce overdate, 1918/7, is recorded for the year. This fifty centavos piece replaced the fifty centavo piece struck 1905-18 (the older type, 30 mm in diameter, was also struck in 1918). The older coin was 12.5 g, .800 fine. It, in turn, was replaced by a smaller fifty centavos piece in 1919. 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").
Recorded mintage: 2,760,000.
Specification: 9.06 g, .800 fine silver, .233 troy oz ASW, 27 mm diameter, lettered edge.
Catalog reference: KM 446.
- Harper, David C. [Ed.], North American Coins & Prices, 17th Ed., Iola, WI: Krause Publications, 2007.
- Buttrey, T. V., and Clyde Hubbard, A Guide Book of Mexican Coins, 1822 to date, 6th ed., Iola, WI: Krause Publications, 1992.
- Harris, Robert P., A Guide Book of Modern Latin American Coins, Racine, WI: Whitman Publishing Co., 1966.
- Utberg, Neil S., The Coins of Mexico, 1536-1963, San Antonio, TX, 1963.