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 Replies: 12 / Views: 1,439 |
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Valued Member
United States
99 Posts |
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Pillar of the Community
United States
827 Posts |
It's the underlying zinc  |
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Pillar of the Community
United States
549 Posts |
I have a toned 1987-D which is similar, but more severe. I just assumed it was post-mint environmental damage of some sort, which caused both the toning and the bubbling.  |
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Bedrock of the Community
United States
19935 Posts |
I think he.... ....had too much champagne!  |
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Pillar of the Community
Australia
3831 Posts |
Oh noes, he has acne too!
My partial coin collection http://www.omnicoin.com/collection/gxseriesMy numismatics articles and collection: http://www.gxseries.com/numis/numis_index.htmRegularly updated at least once a month. |
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Pillar of the Community
United States
7123 Posts |
mahgobbi
The bubbles on your coin were caused by heat , the color of the coin is also a product of the heat .
snook
your coin is gas bubbles and is really a common occurance on the plated lincoln cents ,,the coins from the 80's are especially common .
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Pillar of the Community
United States
5318 Posts |
Yeah...I've also seen this alot on early '80s cents. I just have to wonder who thought it wise to use two metals that register so high in terms of galvanic potential? This is why you see pits develop in the exposed zinc on cents. It basically means these will be corroding very badly in future decades to the annoyance of collectors. Someone did not think this through...  |
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Pillar of the Community
United States
3507 Posts |
Heat has nothing to do with this. It is corrosion of the layer of zinc under the copper plating. It is important to know the facts before posting otherwise newbies go away with misinformation.
This is common as the zinc corrodes under the copper.
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Pillar of the Community
United States
5318 Posts |
quote:
It is corrosion of the layer of zinc under the copper plating.
My guess as well, and this must have been hastened by impurities left on the zinc planchets before the copper plating. |
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Pillar of the Community
United States
7123 Posts |
Foundinrolls ,,the second coin that was posted in this thread has been heated .I guarantee that this coin was heated with a pencil torch.
the first coin which was the thread starter is a common zinc plated coin with gas bubbles .
take a look at the color of the second coin .
sometimes the whole thread has to read to understand what others post .
I responded to both posters in my reply .
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Pillar of the Community
United States
3507 Posts |
Metalman, I see what you mean. No Offense intended.
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New Member
United States
22 Posts |
Oh this Zinc Bubling has been a big issue for me. I started a BU roll set of Memorials and the zinc cents from 82 to 89 are aweful. The zinc bubbling seems to start dissapearing around 1990. Trying to finish my roll set, I'm down to needing a roll of 1988 and a roll of 1988D. Ive prob already bought 10 rolls of each but each and every one had either xinc bubbling or spots of cossorion. So I keep buying roll after roll after roll and hoping the next one is a good one. I would try to go through the rolls I already have and pick what I could of good ones out, but I wouldnt have enough good ones to make half a roll. And I had just as hard of a time with the other dates from 82 to 89. But I did get lucky with the two toughest rolls, the first ones I bought were good. And thats a good thing, cause those dates were both $40 a roll, I'm glad I didnt have to buy 10 rolls to get one good roll.
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Pillar of the Community
United States
1934 Posts |
I have an 82 where the bubbles make it look like Lincoln is crying...a nice line of them from his eye down his cheek.
:( boo hoo
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Replies: 12 / Views: 1,439 |
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1989--d_OBV_bubbling_1.jpg
1989--d_REV_bubbling_1.jpg
Posted 01/26/2008 11:05 am
