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<p>[QUOTE=&quot;KarlB, post: 2266657, member: 75549&quot;]Cartwheeling is the effect you get from holding a coin so that when you tilt the coin the, the light source rotates around the coin, like the spoke of a wheel. It happens only from freshly minted coins with no wear: the metal molecules flow out from the center of the coin in radiating rays.</p><p><br /></p><p>I just learned about this phenomenon recently. The name comes from silver dollars, so I understand. I can readily see the effect in my America The Beautiful Quarter collection.</p><p><br /></p><p>I hope this helps.</p><p><br /></p><p>Good luck.[/QUOTE]</p><p><br /></p>

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