Green Stuff On Barber Dime - Coin Community Forum

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Author	Replies: 4 / Views: 1,061
JimmyCC Valued Member United States 122 Posts	Posted 08/12/2013 01:19 am I found it in a box of pennies. What is it and how do I safely get it off? I know I shouldn't rub it off, so...? Report this Post to the Staff

sel_69l Bedrock of the Community Australia 21786 Posts	Posted 08/12/2013 01:44 am It's probably verdigris, which has come from an infected bronze coin in contact with it. First try acetone, then if that doesn't work, try VerdiCare. Report this Post to the Staff
westcoin Pillar of the Community United States 9792 Posts	Posted 08/12/2013 02:18 am Acetone will kill any PVC on the coin. Verdigris can be a bit more dificult, and if it has eaten into the surface underneath you will see corossion pitting most likely. "Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector. See my want page: http://goccf.com/t/140440 Report this Post to the Staff
Pheroow Valued Member United Arab Emirates 283 Posts	Posted 08/12/2013 04:12 am I never knew silver coins can be infected. Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 08/12/2013 06:20 am Quote: I never knew silver coins can be infected. Damage from PVC byproducts is the gravest threat to silver coinage. This is because so many coin flips were produced using PVC softened by plasticizers; it's the outgassing from those plasticizers which reacts with the silver. Such flips are still being produced. The unwary buy them because the're softer and more flexible than mylar types, not knowing that putting a coin into one can be equivalent to a death sentence. Report this Post to the Staff
	Replies: 4 / Views: 1,061

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