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<p>[QUOTE=&quot;Kevin Mader, post: 3909284, member: 106826&quot;]When you consider the die maintenance and the die usage (hammer vs anvil) it helps to develop an overall explanation of what you’re seeing. At the start a sheet of paper can clean the faces of both dies when brought together. At later die states this is less the case especially around the edges of the dies. These wear away creating a ridge void that when introduced to a planchette, it leaves the reverse effect (a raised ridge) on the coin.[/QUOTE]</p><p><br /></p>

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