What's This On My Cents? - Coin Community Forum

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Author	Replies: 5 / Views: 1,291
Paulsz Pillar of the Community Canada 2187 Posts	Posted 12/13/2013 11:47 pm Can any one tell me what this dark green layer on these large cents are? I have a bunch of coins that are in amazing shape (AU and higher details) but have this green layer on top. I went to a dealer and tried the ms70 cleaner on a really bad coin (just to test out) and not much happened after using 2 q-tips of cleaning. I know you should not clean coins in terms of their value, but I would like to clean some and keep them to myself for having such detail. Any clue what I can do? Report this Post to the Staff

kuh_85 Pillar of the Community Canada 2366 Posts	Posted 12/14/2013 01:54 am Verdigris http://en.wikipedia.org/wiki/Verdigris Note the warning about washing your hands after handling :-) Report this Post to the Staff
Smallcentguy Pillar of the Community Canada 1984 Posts	Posted 12/14/2013 08:37 am Acetone should remove this without "cleaning" so long as the green has not gone hard. Also, whether this will save the coin depends on how long the vedigris has been eating away at the coin. If the underlying copper has been damaged there is nothing to be done. Report this Post to the Staff
Alex A Pillar of the Community 710 Posts	Posted 12/14/2013 09:19 am I had a really bad example of this on a large cent that acetone would not remove. If your coins are AU or higher what did the dealer suggest for cleaning? Report this Post to the Staff
Paulsz Pillar of the Community Canada 2187 Posts	Posted 12/14/2013 1:01 pm The dealer did not really say much. We tried Ms70 cleaner on one coin briefly and although you could see to so of green/black stuff on the tip, the coin had still stayed a shade of green. I'm guessing they have been eaten pretty bad, and there's no turning back? Also, would this stuff keep getting worse or is there a point it has done all tic a do to the coin? Because I have some easily with AU or even MS details, and would sell them as is if people would actually buy them Report this Post to the Staff
Paulsz Pillar of the Community Canada 2187 Posts	Posted 12/14/2013 1:03 pm Sorry for the typos: the q tip had a lot of green stuff on it, but the coin stayed similarly green.* And: is there a point where the verdigris had done all of its damage and cant do anymore? Report this Post to the Staff
	Replies: 5 / Views: 1,291

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