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<p>[QUOTE=&quot;bruthajoe, post: 3935824, member: 108656&quot;]Some may argue that the original surface of the coin has already been destroyed by oxidation. Whatever is under it is all thats left. Now maybe we can stop talking about cleaning and move on to preserving. So how can oxidation be avoided? I wonder where those beautiful 40s and 50s ms 68 silvers come from. What conditions were they kept to survive in such phenominal condition?[/QUOTE]</p><p><br /></p>

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