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<p>[QUOTE="satootoko, post: 14590, member: 669"]Weight is the most accurate method. The .900 silver quarters minted from 1932-64 weighed 6.25g. The standard clad quarters from 1965-present weigh 5.67g. I've never heard of any 1965 silver quarters being found. However in 1975-76 the bicentennial quarters with the dual dates 1776-1976 came in a standard clad composition, and in a silver clad version weighing 5.75g. Also, since 1992 there have been silver proof quarters minted (at San Francisco only) with the pre-1965 weight of 6.25g.</p><p><br /></p><p>There are also definite differences in the "ring" sound of silver, clad, and silver clad coins when dropped on a hard surface, but you have to listen to a lot of known coins being dropped <b>and</b> have pretty good ears to base decisions on the sound.</p><p><br /></p><p>Silver tranishes differently than copper-nickle, so the so-called "toning" of silver and clad coins is also different, but in these days of deliberate tarnishing - oooops "toning" - that too is a difficult read.[/QUOTE]</p><p><br /></p>
[QUOTE="satootoko, post: 14590, member: 669"]Weight is the most accurate method. The .900 silver quarters minted from 1932-64 weighed 6.25g. The standard clad quarters from 1965-present weigh 5.67g. I've never heard of any 1965 silver quarters being found. However in 1975-76 the bicentennial quarters with the dual dates 1776-1976 came in a standard clad composition, and in a silver clad version weighing 5.75g. Also, since 1992 there have been silver proof quarters minted (at San Francisco only) with the pre-1965 weight of 6.25g. There are also definite differences in the "ring" sound of silver, clad, and silver clad coins when dropped on a hard surface, but you have to listen to a lot of known coins being dropped [b]and[/b] have pretty good ears to base decisions on the sound. Silver tranishes differently than copper-nickle, so the so-called "toning" of silver and clad coins is also different, but in these days of deliberate tarnishing - oooops "toning" - that too is a difficult read.[/QUOTE]
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