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<p>[QUOTE=&quot;mikediamond, post: 4635039, member: 1859&quot;]Slight variability in the width of the stripes on the OP&#039;s coin are of no relevance, and the small lamination flap on Kentucky&#039;s coin is simply a distraction.&nbsp; To repeat, the key indicators that coins like these are not improper alloy mix errors are the superficial nature of the stripes (easily worn through) and the failure of any cracking to develop parallel to the straight lines.&nbsp; Now, the roller hypothesis may eventually be proven incorrect as there may be some other source of parallel lines on planchets that I&#039;m not aware of.&nbsp; But in the absence of any other hypothesis, I&#039;m sticking with it.&nbsp; Perhaps the heat generated during rolling &quot;bakes in&quot; some form of discoloration derived from the rollers.&nbsp; Anyway, here is some more information on stripes on coins: <a href="https://www.coinworld.com/news/precious-metals/different-causes-of-stripes-on-coins-are-not-fully-understood.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.coinworld.com/news/precious-metals/different-causes-of-stripes-on-coins-are-not-fully-understood.html" rel="nofollow">https://www.coinworld.com/news/precious-metals/different-causes-of-stripes-on-coins-are-not-fully-understood.html</a>&nbsp; This topic has grown tiresome, so I will no longer be contributing to it.[/QUOTE]</p><p><br /></p>

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