Need Some Help North Carolina Quarter Error?

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Author	Replies: 7 / Views: 1,730
Henry2 Valued Member United States 106 Posts	Posted 12/01/2014 5:30 pm I got this quarter in change today, I noticed the edge has a perfect groove all away around the edge. I matched it up with another quarter and they are exactly the same width and diameter. I thought probably PMD but then I noticed the reeding was still intact inside the groove so it wasn't machined out. Any guesses? Report this Post to the Staff

Altaira Pillar of the Community Canada 2519 Posts	Posted 12/01/2014 5:46 pm Can you post pics of both sides? I have a feeling this is an acid job. Report this Post to the Staff
Henry2 Valued Member United States 106 Posts	Posted 12/01/2014 5:53 pm Front and back both have a black substance on it, you can see it somewhat on the top pic. Would acid still leave a reeded edge on the inside? Report this Post to the Staff
biokemist6 Bedrock of the Community United States 12437 Posts	Posted 12/01/2014 6:02 pm Chemical erosion, the copper core is more reactive than the cupronickel alloy. Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 12/01/2014 6:38 pm Yep,acid damage. John1 Report this Post to the Staff
nickelsearcher Moderator United States 15476 Posts	Posted 12/01/2014 6:48 pm Fun coin to find ... but alas damaged ( PMD) by chemical erosion ... An acidic solution began dissolving the copper core ... and was arrested only by the original owner stopping the reaction. David Take a look at my other hobby ... http://www.jk-dk.art Report this Post to the Staff
junjun Pillar of the Community Puerto Rico 778 Posts	Posted 12/01/2014 7:14 pm PMD acid erosion Report this Post to the Staff
Henry2 Valued Member United States 106 Posts	Posted 12/01/2014 7:50 pm Oh well back into circulation it goes, thanks everyone Report this Post to the Staff
	Replies: 7 / Views: 1,730

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