What Is This Black Junk On A Coin About? Its A 1976 Bicentennial Quarter

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Author	Replies: 9 / Views: 1,464
Knickerssum New Member Canada 22 Posts	Posted 08/29/2024 7:16 pm * Edited by Staff to Add Denomination to Title. It's very important to have in the title. * Hi Just wondering what would cause this black junk on a coin? What could cause this kind of damage? I don't think its fixable. It makes the coin look all spotty. I have seen other coins like this so would like to know if a professional can clean this kind of mess or just leave it as is. Report this Post to the Staff

DOCC Pillar of the Community United States 1502 Posts	Posted 08/29/2024 7:43 pm Fire damage would be my guess. Coin is toast. I swing a metal detector and have a knack for finding dirty old coins. Dirt coin restoration projects - https://www.prodetecting.com/restorations Dirt coin restoration blog - https://www.prodetecting.com/blog/ccaw Dirt coin dig videos - https://www.youtube.com/@prodetecting Report this Post to the Staff
halfamind Pillar of the Community United States 1484 Posts	Posted 08/29/2024 8:05 pm Fire or spent some time in the ground. Regardless, damage is irreversible. Coin is not worth keeping. Report this Post to the Staff
Dearborn Moderator United States 94728 Posts	Posted 08/29/2024 8:16 pm try a soak in acetone to see what happens - can't hurt it any. I wonder if it was painted long ago.. Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
Spence Moderator United States 34393 Posts	Posted 08/29/2024 8:25 pm Quote: I don't think its fixable. Agreed. This would be a spender for me. "If you climb a good tree, you get a push." -----Ghanaian proverb "The danger we all now face is distinguishing between what is authentic and what is performed." -----King Adz Report this Post to the Staff
ijn1944 Bedrock of the Community United States 19112 Posts	Posted 08/29/2024 8:42 pm Post-strike damage--long exposure to a corrosive environment. Perhaps spent time in moist soil or at the bottom of a poorly maintained fountain. Report this Post to the Staff
Marv65 Bedrock of the Community United States 10475 Posts	Posted 08/29/2024 10:10 pm Right - Heat damage, coin will weigh normal - Acid, coin will weigh lighter. Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 08/29/2024 10:24 pm to the CCF! Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 73623 Posts	Posted 08/29/2024 11:03 pm Some kind of Environmental Damage. PMD. Just a spender. Errers and Varietys. Report this Post to the Staff
Sap Moderator Australia 16806 Posts	Posted 08/30/2024 12:29 am Black on a silver coin is tarnish, and removable. Black on a cupronickel or cupronickel-clad coin is severe corrosion - and agreeing with the above comments, probably from extreme heat. The coin is, in essence, burned. Can it be removed? Yes. Can it be removed without making the surface of the coin look more cratered than the Moon? Probably not. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis Report this Post to the Staff
	Replies: 9 / Views: 1,464

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