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<p>[QUOTE=&quot;Asylum, post: 1760606, member: 56609&quot;]I&#039;ve done plenty of research and that is the last question I couldn&#039;t find an answer for. What viscosity is best for not affecting the coins patina/condition? Highest or Lowest?</p><p>&nbsp;</p><p>I plan to remove the coins with dirt on them in my collection. I&#039;ll post a penny I&#039;m thinking about doing it with, because it looks like it could be a good error, but it&#039;s hard to see with the &quot;dirt&quot; on top. What do you think about this one?</p><p>&nbsp;</p><p>I&#039;m planning on only cleaning only the coins I have to, with a sealed glass jar and mineral oil, followed by distilled water to carefully remove the pure oil afterwards.[/QUOTE]</p><p><br /></p>

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