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<p>[QUOTE=&quot;robinjojo, post: 8578495, member: 110226&quot;]I suggest first soaking the coin in distilled water, not tap water.&nbsp; See how much dirt loosens up.&nbsp; Use a soft toothbrush and wooden toothpicks.&nbsp; If there are hard spots, try soaking the coin longer in distilled water.&nbsp; </p><p><br /></p><p>Some hard deposits are just too dense to be removed this way, so then mechanical means might be possible, depending on the nature of the deposits and whether or not they yield to scraping.&nbsp; This requires experience in knowing how far to go and how to handle the tool, which in my case is a dental pick, the sort that your dentist uses.&nbsp; I don&#039;t scrape as much as carefully rubbing the deposit to see how much of it yields, checking frequently.&nbsp; Some deposits are so hard, such as the hard green deposits often seen on AE coins, that they are best left alone.&nbsp; In any event, you don&#039;t want to get down to bear metal.[/QUOTE]</p><p><br /></p>

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