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<p>[QUOTE=&quot;krispy, post: 800397, member: 19065&quot;]They used distilled water (predominantly) to clean the <a href="http://en.wikipedia.org/wiki/Restoration_of_the_Sistine_Chapel_frescoes" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://en.wikipedia.org/wiki/Restoration_of_the_Sistine_Chapel_frescoes" rel="nofollow">Sistine Chapel</a>... sometimes the simplest, purest thing is solvent enough.</p><p><br /></p><p>It really first needs to be determined what <i>kind </i>of glue or sealer was used on this in order to consider options to reverse it. If it was hide glue (animal-based) chances are very good it&#039;s reversible. So since this is old and hide glues were more common in the past, this could be an option. Even better if the glue is wheat starch for reversibility, water alone would dissolve this enough in the hands of a professional conservator. If it&#039;s plastic, wax (oily) or some other sealer that permeated the entire fiber of the paper, chances are slim that it can be removed without risk of damage to the note and it&#039;s printed regions even if you managed to get it off the board. Removing the board from the note is probably more the approach than taking the note off the board. In any case, it&#039;s delicate and tedious work.[/QUOTE]</p><p><br /></p>

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