Corrosion On Lincoln Memorial Cent / LMC Proof

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Author	Replies: 7 / Views: 1,549
CitationSquirrel Pillar of the Community United States 1026 Posts	Posted 01/18/2020 4:32 pm I was cracking open a proof set this morning and discovered that the cent had some sort of corrosion on it. I'm curious if anyone knows what causes this. I would suspect that either the seal was not good and something got inside or there was something that got sealed inside with the coin. If anyone knows, I'd love to hear. Edited by CitationSquirrel 01/19/2020 07:39 am Report this Post to the Staff

John1 Moderator United States 56855 Posts	Posted 01/18/2020 5:04 pm Looks like carbon spots. John1 Report this Post to the Staff
CitationSquirrel Pillar of the Community United States 1026 Posts	Posted 01/18/2020 5:10 pm Thanks John ..... Any idea what would cause that in a sealed proof set or does that even matter? Report this Post to the Staff
T-BOP Rest in Peace United States 18456 Posts	Posted 01/18/2020 9:55 pm All I see is a photo of a proof Dollar coin . Where is the LMC ? Report this Post to the Staff
CitationSquirrel Pillar of the Community United States 1026 Posts	Posted 01/18/2020 10:06 pm Thanks for letting me know T-Bop. I think I got it fixed. Honestly, it was an LMC earlier in the day .... Just ask Jon. Edited by CitationSquirrel 01/19/2020 07:41 am Report this Post to the Staff
BadThad Bedrock of the Community United States 19943 Posts	Posted 01/21/2020 4:43 pm Black, cupric oxide corrosion. It's caused by improper storage. Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Report this Post to the Staff
Conder101 Bedrock of the Community United States 17884 Posts	Posted 01/22/2020 12:00 pm Quote: Any idea what would cause that in a sealed proof set or does that even matter? Someone sneezed and a couple droplets settled on it before it got sealed in the holder. On both of the large spots you can see roughly in the center of each the remains of what caused the corrosion spot. Report this Post to the Staff
Thecollectible Valued Member 231 Posts	Posted 01/27/2020 05:22 am It looks exactly like proof to me there Report this Post to the Staff
	Replies: 7 / Views: 1,549

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Corrosion On LMC Proof