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<p>[QUOTE=&quot;mralexanderb, post: 486013, member: 7851&quot;]My thoughts were, that if it can hold a vacuum it can keep out most if not all the moisture. I&#039;m convinced that this would be an inexpensive way to preserve coins in slabs. And raw coins too.</p><p>&nbsp;</p><p>After I noticed 2 slabs that seemed to have moisture in them I needed a better way to protect them. I had left them sitting out for longer than I expected. When I slightly squeeze the slab there&#039;s a spot of moisture that flattens out. If I put these 2 slabs in the zip-lock and add desiccant then vacuum it, I think I might get the moisture to travel to the desiccant pack. I hope.</p><p>&nbsp;</p><p>Now, to buy the Ziplock vacuum unit.</p><p>&nbsp;</p><p>Bruce[/QUOTE]</p><p><br /></p>

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