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<p>[QUOTE=&quot;GDJMSP, post: 1467407, member: 112&quot;]Yes, the current is created by the chemical reaction instead of an outside electrical source. But the outcome is basically the same.</p><p>&nbsp;</p><p><br /></p><p><br /></p><p>And it is the formation of the new compound, due to the electrical current, is what causes the pitting. </p><p><br /></p><p>Why do you think that guy that made the video said not to use the method on coins that have numismatic value ? It&#039;s because this method is as old as the hills and it is well known, and documented that it harms the coins.</p><p>&nbsp;</p><p><br /></p><p><br /></p><p>Not even close. There is not even any comparison between the two.[/QUOTE]</p><p><br /></p>

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