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MetalWorld Total to date(Billions Troy Ounces)Oz/CoinCoin used in calculationTotal Coins Possible (Billions)Lawful Dollar Value (Billions)Current Melt-weight Value in Federal Reserve Notes/ounceCurrent Melt-weight Value in Federal Reserve Notes Total Possible (Billions FRNs)

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Silver42.970.868070158$149.50060729999249.50060729999218773.46

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Gold3.40.562638066$106.0429611955903560.42961195590341227.84174.52

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Platinumn/an/an/a1512

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Paladiumn/an/an/a478

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1 gram = 0.0321507466 troy ounces

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Coinage Act of 1792 metal content Lawful Money (from Wikipedia)

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Eagles $10247 4/8 grain (16.0 g) pure or 270 grain (17.5 g) standard gold

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Half Eagles $5123 6/8 grain (8.02 g) pure or 135 grain (8.75 g) standard gold

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Quarter Eagles $2.561 7/8 grain (4.01 g) pure or 67 4/8 grain (4.37 g) standard gold

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Dollars or Units $1371 4/16 grain (24.1 g) pure or 416 grain (27.0 g) standard silver

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Half Dollars $0.5185 10/16 grain (12.0 g) pure or 208 grain (13.5 g) standard silver

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Quarter Dollars $0.2592 13/16 grain (6.01 g) pure or 104 grains (6.74 g) standard silver

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Dismes $0.137 2/16 grain (2.41 g) pure or 41 3/5 grain (2.70 g) standard silver

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Half Dismes $0.0518 9/16 grain (1.20 g) pure or 20 4/5 grain (1.35 g) standard silver

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Cents $0.0111 pennyweights (17.1 g) of copper

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Half Cents $0.0055 1/2 pennyweights (8.55 g) of copper

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World Mine Production and Reserves: