1949, 1978-1980 MEXICO CASA DE MONEDA 4 - 1 Oz. ONZA SILVER BULLION COIN SET

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1949, 1978, 1979, and 1980 Casa de Moneda Una Onza Troy de Plata Pura - or One Troy Ounce Pure Silver each. 4 Troy ounces ASW total.Casa de Moneda is the national mint of Mexico, and is in fact the oldest mint in the Americas, established in 1535.These coins are Sterling silver (0.925 pure) and contain 1 Troy oz of silver each, but weigh a total of 1.081 Troy oz (33.625 grams). •BUYER RECEIVES THE EXACT COINS AS SEEN IN PHOTOS• The onza had a very irregular mintage history. It is fairly common from 1978, 1979, and 1980, but was first minted in 1949. When mintage was resumed in 1982(Libertads)the pattern changed and the coin’s composition switched from sterling to 0.999. Those bullion pieces were minted as purely non-circulating coins. Thanks for looking!------------------------------------------------------ 1. 1949 Casa De Moneda 33. 625(ASW 1oz.) .925 Silver. PropertiesGeo ~ MexicoSub Geo ~ Not AvailableCoinage Type ~ Medallic Silver Bullion CoinageDenomination ~OnzaYear ~ 1949Composition~SilverCatalog Number KM# M49aObverse Description: Mint mark above coin pressDiameter (mm.) 41Fineness 0.925Actual Weight (oz.)1------------------------------------------------------Mexico Onza 1978 Silver Bullion Peso ReverseDate: 1978Mint Mark: Mo (Mexico City)Mintage: 250,000 Country of origin: MexicoComposition: 92.5% silver (presumably 7.5% read more