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<p>[QUOTE=&quot;calcol, post: 2564078, member: 77639&quot;]All bank bathrooms should have one!</p><p><br /></p><p>Actually, imbedding in or coating with a clear inert medium might work really well.&nbsp; Ancient and medieval coins were often lacquered as a means of preserving the surface.&nbsp; It worked pretty well, but over the decades and centuries, the lacquer yellowed.&nbsp; There are a number of modern polymers that would last considerably longer, and many could be removed with solvents that would not damage coins.&nbsp; At this point, imbedded or &quot;lacquered&quot; modern coins aren&#039;t acceptable to collectors and grading services, so the idea will go nowhere now.</p><p><br /></p><p>Cal[/QUOTE]</p><p><br /></p>

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