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<p>[QUOTE=&quot;kanga, post: 364147, member: 9270&quot;]Very interesting!!!</p><p>Nice observation.</p><p>I join the group who&#039;s never seen or even known about it.</p><p>&nbsp;</p><p>About the cause.</p><p>I thought only dies were annealed.</p><p>Are planchets annealed too?</p><p>&nbsp;</p><p>I agree with this much.</p><p>The more slowly a heated object cools, the more time the atoms/molecules have to arrange themselves resulting in visible crystals.</p><p>&nbsp;</p><p>If only the dies are annealed, then they would have transferred the pattern to the coin during striking.</p><p>And I would think that would only occur early in die life and be &quot;rubbed out&quot; as the dies were used and worn.</p><p>&nbsp;</p><p>If planchets are annealed, then this pattern could occur at any stage of die life.</p><p>&nbsp;</p><p>I&#039;ve only got a few IHC&#039;s, so it&#039;s unlikely that I have such a coin.</p><p>I&#039;m going to a coin show tomorrow and MFD is a small cent specialist.</p><p>I&#039;ll run this by him.[/QUOTE]</p><p><br /></p>

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