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<p>[QUOTE=&quot;expat, post: 4593170, member: 111067&quot;]The &quot;gunk&quot; around the rims and lettering all but disappeared and as you say a lot of the white spots are gone. Definite improvement.</p><p>Part two of the experiment is now to soak them overnight and see what happens.</p><p>As mentioned I am prepared to &quot;sacrifice&quot; these three coins if it is necessary&nbsp; to obtain info on the effect of acetone on proof surfaces.</p><p>And, yes, i will use the same background for the fotos[/QUOTE]</p><p><br /></p>

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