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<p>[QUOTE=&quot;desertgem, post: 25445920, member: 15199&quot;]Medical gloves cover the complete hand and will prevent leaving moisture on the coin, If it is a very precious metallic material, an absorbing facial mask will help a lot also in breathing. Its the water basis that can cause the problem whether it is a sneeze, talking or coughing over your activity or walking in the rain or a high moisture in the air. Using warm filtered air from a blower should prevent any reactions, IMO. Jim[/QUOTE]</p><p><br /></p>

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