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<p>[QUOTE=&quot;GDJMSP, post: 805970, member: 112&quot;]What you are seeing on the reverse at 4 o&#039;clock is called finning. It happens when a coin is struck with greater than normal pressure, when the planchet is a bot thicker than normal,orwhen the dies are improperly spaced. What happens is that bit of metal is forced up between the collar and the die - creating that fin around the rim.</p><p><br /></p><p>As for reeding, that&#039;s a bit more puzzling. But it looks maybe the coin bounced inside the collar during the strike.[/QUOTE]</p><p><br /></p>

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