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<p>[QUOTE=&quot;Pickin and Grinin, post: 24863665, member: 73995&quot;]Thomas a drop test is the least reliable of any test. it also has the potential to reduce the value thru damage if it does turn out to be some kind of wrong metal. </p><p><br /></p><p>There are too many variables when trying to come to a conclusion from a drop test.</p><p>First a lighter or heavier planchet.</p><p>Second could be a cladding that did not bond to the copper core.</p><p>Third angle of the coin when it hits</p><p>fourth a surface that doesn&#039;t have the same density. (IE) a dashboard of a vehicle. Think of a drum. At the edge you get a different tone than if you hit the center. The reverberation has a different density.</p><p><br /></p><p>All the above reasons are why we do not use a drop test when trying to attribute a coin. It is not only destructive it never leads anyone to a definite conclusion.[/QUOTE]</p><p><br /></p>

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