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<p>[QUOTE=&quot;Kasia, post: 2338006, member: 31533&quot;]Well, I believe the blistering was called &#039;orange-peel effect&#039; by a lot of people before kind of dropping that term.</p><p><br /></p><p>Also, in an article by Ken Potter on numismaster.com, he says the cause of the blistering is &quot;The cause of this error type is contamination of the electrolyte used in the barrel plating process that in time causes a condition known as “foaming.” At this point anti-foaming agents need to be added to the solution or it needs to be replaced but invariably a number of coins exhibiting this condition get out of the Mint every year.&quot;</p><p><br /></p><p>So basically these errors, which can look like each other, are caused by different processes.[/QUOTE]</p><p><br /></p>

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