This Coins weight is 11.41 Grams.I was thinking that if it was plated it would weigh more than the 11.5 grams that it should weigh. How can I authenticate whether this coin is solid silver or not?
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It is very difficult to see the poorer alloy on the edge of any of the '65 to '70 Half dollars that I possess. Silver clad 80% silver 20% copper, with a 79% copper, 21% silver core. They ALL weigh 11.5 grammes.
The 90% silver proofs are '64, and 1992s to date, weigh 12.5 grammes, and appear obviously different.
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