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<p>[QUOTE=&quot;TIF, post: 7750299, member: 56859&quot;]Might it be plaster?&nbsp; Making a mold of a coin by direct casting in plaster is a bad idea but maybe someone didn&#039;t know that.</p><p><br /></p><p>I don&#039;t think your coin is a cast, but sometimes white stuff in the crevices is leftover jewelry investment from the casting process.&nbsp; <i>Again, I&#039;m not saying your coin is cast</i>, just mentioning instances where you might see white stuff on a silver coin.[/QUOTE]</p><p><br /></p>

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