I've known a few folks who have utilized electrolysis and then "regrew" the patina by leaving them outdoors for a bit. Their efforts were effective.
On a different note, there are also a few other "
techniques" I'm aware of that some dishonest folks employ for regrowing patinas to improve the value of a coin, but I'll neither mention them nor do I practice them.
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« Last Edit: September 22, 2010, 08:55:28 pm by CheetahCats »
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CheetahCats Colonials & Early American Coin Enthusiast Member ANA & C4
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