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<p>[QUOTE=&quot;Conder101, post: 2732525, member: 66&quot;]Well he is obviously thinking 40% silver clad because he says the edge clearly shows the &quot;sandwich&quot;.&nbsp; Weight is NOT conclusive to tell 40% silver clad from copper nickel clad. (40% silver clad can weight as low as 5.55 grams and copper nickel can weight as much as 5.9 grams.&nbsp; So there is a big overlap in the weight ranges.)&nbsp; Specific gravity should be conclusive.&nbsp; Copper nickel clad SG is 8.92, 40% silver clad is 9.53.</p><p><br /></p><p>However if it is a Philadelphia the chance of it being 40% silver clad is pretty much zero because there is no place for the planchet to come from.&nbsp; If it is Denver then there is a slight chance because rejected proof planchets are sometimes shipped fro San Francisco to Denver to use for circulation strikes and there have been 1974-D 40% halves and Dollars found.&nbsp; So a 40% 1974-D quarter could be a possibility.&nbsp; But not a Philadelphia.[/QUOTE]</p><p><br /></p>

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