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<p>[QUOTE=&quot;chip, post: 630440, member: 19122&quot;]Informative post, metal under the pressures of coining can have some interesting reactions, a planchet is uniformly a certain thickness, but that uniform thickness does have some variance, I think that sometimes what is called a weak strike or a worn die sometimes can be a thinner planchet.</p><p>&nbsp;Plus most of our coinage are alloys, mixtures of metals, these metals sometimes are not as uniformly mixed as advertised.[/QUOTE]</p><p><br /></p>

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