What Could Have Possibly Caused This Strange Coloring?

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Author	Replies: 9 / Views: 2,156
CoinHuntingDrew Pillar of the Community United States 4932 Posts	Posted 04/24/2015 12:22 am http://www.ebay.com/itm/1914-d-Linc...em5673eaf5fd On the reverse... Weird environmental damage? The obverse is just stunning and would make a great piece for my dansco. Report this Post to the Staff

CelticKnot Bedrock of the Community United States 12815 Posts	Posted 04/24/2015 12:31 am Looks like verdigris to me on the reverse. Not sure about that "cracked earth" pattern. Maybe a result of being in a folder at one time? The obverse looks to have been cleaned? Or is that just normal wear highlighting the high points? Report this Post to the Staff
Darth Morgan Pillar of the Community United States 2815 Posts	Posted 04/24/2015 12:31 am It appears that the weird pattern has resulted from removing verdigris off of the reverse. You can see that this same pattern is present with the verdigris that is still present. Report this Post to the Staff
edweather Pillar of the Community United States 7375 Posts	Posted 04/24/2015 12:42 am Looks like the reverse got wet or sat in some kind of liquid, and left a pattern and some verdigris, but just a guess. Edited by edweather 04/24/2015 12:43 am Report this Post to the Staff
jimbucks Pillar of the Community United States 4691 Posts	Posted 04/24/2015 02:28 am Most likely ED. Report this Post to the Staff
CoinHuntingDrew Pillar of the Community United States 4932 Posts	Posted 04/24/2015 02:45 am Is there a way to naturally remove verdigris? Report this Post to the Staff
CelticKnot Bedrock of the Community United States 12815 Posts	Posted 04/24/2015 04:18 am "naturally"? hmmm not sure what that means. There is something called "Verdi-care" that will remove the verdigris without damaging the coin. Pretty sure if you search this forum you'll find it, and possibly its creator. I'm sure you already know this but removing any kind of sediment from a sufficiently old coin can/will expose areas of the coin that will have a different patina than the rest of the coin. Report this Post to the Staff
GR58 Bedrock of the Community United States 11951 Posts	Posted 04/24/2015 07:49 am When I look at it.... The thought of someone washing this coin, then putting it into a folder before it was dry. But I think all we can do is guess Report this Post to the Staff
kanga Pillar of the Community United States 5825 Posts	Posted 04/24/2015 07:59 am Quote: Is there a way to naturally remove verdigris? Verdigris is a chemical reaction between copper and some environment element/compound. That is NOT reversible. The verdigris can be removed but the copper involved gets removed too. The degree of damage can only be determined by removing the verdigris. NOTE: The seller did not get the coin slabbed. He knows that the result will be a DETAILS or Genuine coin. He's fishing for a newbie who doesn't know that. Report this Post to the Staff
BadThad Bedrock of the Community United States 19935 Posts	Posted 04/24/2015 10:10 am The odd reverse toning appears to be from the removal of a residue of some sort. The residue protected the patina from browning with the rest of the coin and reveals a different surface when removed. Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Report this Post to the Staff
	Replies: 9 / Views: 2,156

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