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 Replies: 16 / Views: 3,784 |
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New Member
United States
37 Posts |
Found this strange 1991 US cent with these weird bumps all over it in a roll search (finally found that presentable 2017-P for my album by the way). Tried to get good closeups of the raised metal lumps. What you're seeing in the photos is a 20x to 40x zoom of the field on the obverse. Looks kinda like ole' Abe is sneezing.  I'm leaning towards PMD, maybe from heat or chemicals, but it could be a mint error. As we all know, Quality control has certainly let bigger goofs slip by in the past. Opinions?   |
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Rest in Peace
United States
17900 Posts |
Zinc rot. Copper plating is detaching from interior zinc.
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New Member
 United States
37 Posts |
Makes sense. One spot on the reverse actually looks like a volcano.
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New Member
United States
37 Posts |
Thanks for your help. I'd never even heard of zinc rot before.
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Moderator
 United States
34402 Posts |
Quote:
I'd never even heard of zinc rot before. If you hang out in this part of CCF for very long, you'll see that it comes up quite frequently. It is a great learning experience! "If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Bedrock of the Community
Canada
24885 Posts |
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Pillar of the Community
United States
3469 Posts |
I have to ask, how can you tell anything from those images?
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Rest in Peace
United States
17900 Posts |
Bubbly surface + date = zinc rot. Photo is good enough to see that.
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Bedrock of the Community
United States
94367 Posts |
At first I thought it was something from the Mars Rover, but now it makes sense.
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Pillar of the Community
7234 Posts |
That's just a close up of lizard skin!   |
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Bedrock of the Community
United States
19945 Posts |
Plating bubbles, normal:  Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
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Bedrock of the Community
United States
74060 Posts |
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Bedrock of the Community
United States
20753 Posts |
Similar bubbles found on many pennies from the 80's to 90's. Mint was still learning how to plate coins I guess.
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Pillar of the Community
United States
8715 Posts |
It's just some plating bubbles. Doesn't increase the value of the coin.
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Pillar of the Community
United States
3402 Posts |
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New Member
United States
37 Posts |
More like Lincoln snots. Looks just like he just let loose a nose shower, and probably had to clean the first beard afterwards.
(I also have one that looks like Lincoln has a Mohawk)
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Replies: 16 / Views: 3,784 |
Posted 06/29/2018 1:48 pm
