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[[Image:Mexico 2017 media onza obv DSLR.jpg|300px|thumb|from the Mountain Groan Collection]]
[[Image:Mexico 2017 media onza rev DSLR.jpg|300px|thumb]]

In 1949 the [[Mexico]] City mint issued the world's first onza to modest success. It tried again in 1980 with a resurrection of the 1949 design. In 1982 the medallion (technically, ''Libertads'' are not coins) was redesigned to use the obverse from the 1921 two pesos. The weight was reduced and the fineness increased from .925 to .999 silver. The medallion was an immediate hit. It was the only silver bullion coin on the market for several years and, backed by the Mexican government, outcompeted private mint issues. It inspired imitations such as the U. S. silver eagle (from 1986) and the Canadian Maple Leaf (from 1988) which have cut into its market share to the point where several of the later dates are downright rare. The type is recorded for 1996-2017 but is still in production.

''Recorded mintage:'' 9,050 + 12,750 proofs.

''Specification:'' 15.55 g, 0.999 fine silver, 0.50 troy oz ASW, reeded edge, 33 mm diameter.

''Catalog reference:'' KM 639.

''[[Bibliography|Source:]]''
* Michael, Thomas, and Tracy L. Schmidt, ''Standard Catalog of World Coins, 2001-Date, 13th ed.,'' Iola, WI: Krause Publications, 2018.

''Link to:''
* [[Mexico 2014 1/2 onza|2014 media onza]]
* [[Mexico 2015 1/2 onza KM-674|2015 media onza, gold]]
* [[Mexico 2016 1/4 onza KM-673|2016 ¼ onza oro]]
* [[Mexico 2017 50 centavos|2017 50 centavos]]
* [[Mexico 2017 5 pesos|2017 5 pesos]]
* [[Mexico 2017 10 pesos|2017 10 pesos]]
* [[Mexico 2017 20 pesos KM-989|2017 20 pesos, centennial of the constitution of 1917]]
* [[Mexico 2017 onza|2017 onza]]
* [[Mexico 2018 1/2 onza KM-674|2018 ½ onza, gold]]
* [[Coins and currency dated 2017]]
* return to [[Mexican coinage of the modern era, since 1905]]

[[Category:Silver minors of Mexico]][[Category:Selections from the Mountain Groan Collection]]

Mexico 2017 1/2 onza - Revision history

LatinKing2020: Created page with "from the Mountain Groan Collection thumb In 1949 the Mexico..."