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This list gives approximate weights in grams of American silver coins prior to 1964. It is important to note that pre-1964 American silver coins contain 90% silver, not 100%. There are 31.1 grams in a troy ounce. Silver is bought and sold in troy ounces on the commodities markets.



Coin Type Grams
Silver Dollars (pre-1965)   26.7 grams
Half Dollars (pre-1965)      12 grams
Quarters (pre-1965)            5.8 grams
Dimes (pre-1965)               2.5 grams