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<p>[QUOTE=&quot;Clawcoins, post: 3390984, member: 77814&quot;]Split Plate Doubling</p><p><br /></p><p>Keep in mind the copper plating is spec&#039;d at 8 microns thick I think?</p><p>so if the minting pressure is a bit more than normal, or the plating is a tad too thin, it gets stretched too much and splits.&nbsp; So you can see the zinc core in the split area which has no copper .</p><p><br /></p><p><a href="http://www.error-ref.com/split-plate-doubling/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.error-ref.com/split-plate-doubling/" rel="nofollow">http://www.error-ref.com/split-plate-doubling</a></p><p><br /></p><p>and</p><p><a href="https://errorvariety.com/OFD/PSD.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://errorvariety.com/OFD/PSD.html" rel="nofollow">https://errorvariety.com/OFD/PSD.html</a></p><p><br /></p><p>and</p><p><a href="http://www.lincolncentsonline.com/mechanicalDoubling.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.lincolncentsonline.com/mechanicalDoubling.html" rel="nofollow">http://www.lincolncentsonline.com/mechanicalDoubling.html</a></p><p><br /></p><p>just remember .. that post 1982 cents host a whole boatload of problems.&nbsp; They&#039;ll totally eat themselves over time.&nbsp; they create their own problems due to the thin copper plating over a more reactive submetal (zinc).&nbsp; The same reason Paint on your car bubbles up anytime the metal underneath rusts or any other impurities.[/QUOTE]</p><p><br /></p>

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