1988 P Jefferson Nickel Error? Copper And Black And Clad

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Author	Replies: 11 / Views: 2,270
Newherehavingfun Valued Member United States 190 Posts	Posted 03/18/2024 9:01 pm Hi all! It's been a while. I hope you don't mind having a quick peek. I am quite tired and can't get better images (as usual) but is this discoloration an error, if discernable? It's pretty nifty! There are also a few die chips as far a I can tell. 2-3 spots. Not visible here. Maybe the coloring is acid? Thanks so much! Report this Post to the Staff

Errers and Varietys Bedrock of the Community United States 73978 Posts	Posted 03/18/2024 9:43 pm I'm thinking environmental damage. Errers and Varietys. Report this Post to the Staff
Newherehavingfun Valued Member United States 190 Posts	Posted 03/18/2024 9:55 pm "I'm thinking environmental damage." Cheers, that's very helpful :) Report this Post to the Staff
Brandmeister Pillar of the Community United States 6495 Posts	Posted 03/18/2024 10:04 pm If those areas are a bright copper color, Silviosi once said that amino acids will produce that effect on cupronickel. He appears to have a wealth of knowledge about metallurgy and chemistry, so maybe that's what happened to your coin. Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 03/18/2024 10:06 pm Agree, environmental toning/staining of unknown origin. Report this Post to the Staff
Newherehavingfun Valued Member United States 190 Posts	Posted 03/18/2024 10:11 pm "if those areas are a bright copper color, Silviosi once said that amino acids will produce that effect on cupronickel. He appears to have a wealth of knowledge about metallurgy and chemistry, so maybe that's what happened to your coin." Interesting! Yes they appear bright, indeed! Thanks so much :) Report this Post to the Staff
Newherehavingfun Valued Member United States 190 Posts	Posted 03/18/2024 10:12 pm "Agree, environmental toning/staining of unknown origin." Thanks Coinfrog! Report this Post to the Staff
Marv65 Bedrock of the Community United States 10514 Posts	Posted 03/18/2024 11:01 pm There have been examples of nickels getting a copper look from the the annealing process but I have no idea how common that is - Here's an article: https://www.collectorsweekly.com/st...proper-annea Report this Post to the Staff
Dearborn Moderator United States 95517 Posts	Posted 03/18/2024 11:26 pm yes, this is from improper annealing it causes the copper in the metal to migrate to the surface. 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
Brandmeister Pillar of the Community United States 6495 Posts	Posted 03/18/2024 11:42 pm The short thread discussing this particular nickel can be found here: http://goccf.com/t/455117 Report this Post to the Staff
Newherehavingfun Valued Member United States 190 Posts	Posted 03/18/2024 11:48 pm "There have been examples of nickels getting a copper look from the the annealing process but I have no idea how common that is - Here's an article: https://www.collectorsweekly.com/st...roper-annea" Thanks Marve, that looks so pretty! Report this Post to the Staff
Newherehavingfun Valued Member United States 190 Posts	Posted 03/18/2024 11:48 pm Dearborn: "yes, this is from improper annealing it causes the copper in the metal to migrate to the surface." You think my coin is improperly annealed or the example in the comments? Thanks! Report this Post to the Staff
	Replies: 11 / Views: 2,270

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