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<p>[QUOTE="Jaelus, post: 3142742, member: 46237"]Ok, but how do you know how it was handled before you got it? That's the danger. Acetone removes oils from handling and other organic contaminants (PVC residue, adhesives, etc.) from the coin without adversely affecting it. You don't want to store a coin long term with these contaminants present. Acetone also assures the coin is completely dry before storage.</p><p><br /></p><p>Proper cleaning (a.k.a. conservation) and proper protection of the surfaces is a must for WWI era iron. By the way, I would also suggest keeping a coin like that in an archival all-mylar flip like a saflip. Cardboard wicks moisture out of the air and is not ideal storage for this type of coin.[/QUOTE]</p><p><br /></p>
[QUOTE="Jaelus, post: 3142742, member: 46237"]Ok, but how do you know how it was handled before you got it? That's the danger. Acetone removes oils from handling and other organic contaminants (PVC residue, adhesives, etc.) from the coin without adversely affecting it. You don't want to store a coin long term with these contaminants present. Acetone also assures the coin is completely dry before storage. Proper cleaning (a.k.a. conservation) and proper protection of the surfaces is a must for WWI era iron. By the way, I would also suggest keeping a coin like that in an archival all-mylar flip like a saflip. Cardboard wicks moisture out of the air and is not ideal storage for this type of coin.[/QUOTE]
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