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<p>[QUOTE=&quot;Jonathon, post: 374405, member: 14134&quot;]Ok I did a little research. Copper is the coin metal that corrodes most easily. It does not even start to show signs of corrosion unless it is in at least 35% relative humidity. So anything under 35% RH should be sufficient. Of course like GDJMSP said, the dryer the better so keep your coins in the lowest RH possibe.[/QUOTE]</p><p><br /></p>

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