1984 D Mint Mark Placement - Coin Community Forum

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Author	Replies: 8 / Views: 1,057
KhakiKlad New Member United States 8 Posts	Posted 10/06/2018 2:52 pm I thought it was a zinc bubble then noticed the round pressure rings around the mm. There is a popped bubble on his collar. Thanks in advance for any and all opinions/advice. Report this Post to the Staff

Errers and Varietys Bedrock of the Community United States 74279 Posts	Posted 10/06/2018 2:57 pm Can't be a mint mark. I'm thinking that's Zinc Rot corrosion setting in, on that area. Errers and Varietys. Report this Post to the Staff
Jim0815 Pillar of the Community United States 5239 Posts	Posted 10/06/2018 3:16 pm If you can push it flat with a fingernail or toothpick it's a plating issue. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 10/06/2018 3:19 pm The gray in the center tells me it is a split plating issue. The air started working on it making it rise. As the zinc rots, then then it will fall and become a crater. Keep it and watch the progress. Leave it out of a 2X2 to allow the oxygen to work on it. Take images once in a while to see it progress. But it wasn't struck that way. Report this Post to the Staff
KhakiKlad New Member United States 8 Posts	Posted 10/06/2018 3:42 pm Thanks for the advice Coop I will keep it out and watch its progress. I did press it with my thumbnail and it definitely seems to be a zinc bubble. Edited by KhakiKlad 10/06/2018 3:44 pm Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 10/06/2018 3:50 pm It just a matter of time. I've heard of exposing them to acid and watch them accelerate. But probably best to do this outdoors. Video it. That might be nice to see. (Or maybe not?) Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 10/06/2018 4:08 pm In the future,please rotate photos properly before posting.Thanks. John1 Report this Post to the Staff
DBM Pillar of the Community Canada 9864 Posts	Posted 10/06/2018 4:54 pm . e e r g a - I "Dipping" is not considered cleaning... -from PCGS website Edited by DBM 10/06/2018 4:56 pm Report this Post to the Staff
SilverDollar2017 Pillar of the Community United States 8715 Posts	Posted 10/06/2018 4:56 pm Yep, zinc rot. Quote: . . t e . o e . r r. g . c a . n - . i I. Z Report this Post to the Staff
	Replies: 8 / Views: 1,057

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