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<p>[QUOTE=&quot;thomas mozzillo, post: 3547453, member: 75914&quot;]The 1964 90% silver Kennedy half should weigh 12.50 grams while the 40% silver half should weigh 11.50 grams. There&#039;s no copper core in the 40% halves so there wouldn&#039;t be a &quot;bronze ring around the edge&quot;. You can only see the copper core on the copper nickel clad half dollars and the weight should be 11.34 grams. They started minting 90% silver half dollars again in 1992 to be included in the Silver Proof Sets. The 1776-1976 Bicentennial sets also contained a Kennedy silver half but I don&#039;t know if they were 40% or 90% silver.[/QUOTE]</p><p><br /></p>

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