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<p>[QUOTE=&quot;Fred Weinberg, post: 3425325, member: 86437&quot;]In the strictest sense, yes, copper plating </p><p>bubbles are &#039;errors&#039;, because the planchets</p><p>shouldn&#039;t show the bubbles - most unstruck</p><p>copper coated zinc planchet are nice and smooth.</p><p><br /></p><p>However, in general, the vast majority of them,</p><p>because they are so common, are more like</p><p>&#039;anomalies&#039; - different, but not significant in most cases.[/QUOTE]</p><p><br /></p>

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