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 Replies: 11 / Views: 1,473 |
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Pillar of the Community
United States
6114 Posts |
So this one is up for discussion, as I have little experience with such a coin. Did the plating fail to adhere before the strike (the continuous unchanged die scratches across the boundary would suggest this), fall off during/after the strike, or was Johnny busy with some copper solvent and made this in the garage. Weight is 2.45g. Any help appreciated, as it's an interesting coin with the copper off or falling off or blistered in many places. Note the G of GOD. 1982 (LD ZN) Lincoln Memorial cent mint error? - plating failure       Edited by tropicalbats
08/26/2021 10:32 pm
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Pillar of the Community
United States
509 Posts |
I am going to go out on a limb here and give my theory of what has happened here. I believe the reverse of this cent was predisposed to a tremendous amount of direct heat (a small flame butylene torch). This caused the excessive heat which discolored the area on the reverse (removing the copper plating), At the same time, this caused 'blisters' on the reverse unlike anything I have ever seen from normal 'blistered plating' on a zinc cent. The obverse looks as though the heat transferred through the coin but still caused bubbling of the copper plating but not as prominent as seen on the reverse. There looks to be built up 'ridges' in front of Linc's nose and profile which may be consistent with heat damage which 'pushed' the copper plating into this position. Heck...... I don't know..... but I am inclined to believe this is PMD of some sort caused by nothing more than excessive heat. Just my theory on this one. Edited by Bumpkin
08/26/2021 11:27 pm
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Moderator
 United States
56855 Posts |
I think coop mentioned he thought it was caused by a cigarette lighter. A high heat would melt the zinc. John1  |
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Moderator
United States
34416 Posts |
That bubbling, especially around the word ONE, makes me think of damage too.
"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
United States
19165 Posts |
Excellent photography, by-the-way.
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Pillar of the Community
 United States
8760 Posts |
 Great pics! I don't know how to read tea leaves either, so I'm not going to hazard a guess. -makecents-
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Bedrock of the Community
United States
94367 Posts |
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Bedrock of the Community
United States
62064 Posts |
I agree. Probably altered in a bar when someone had the coin and time on his hands torching it. Through the years the darkened area where the burn happen has worn off the coin.
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Moderator
United States
96451 Posts |
Low intensity heat makes sense
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Pillar of the Community
United States
5775 Posts |
There are some knarly die polish lines going on, especially around the front and back of the portrait and the reverse (likely from a clash).
Some of the perimeter of the grey area on the front looks too "precise" to be a plating issue, so I'm thinking this is environmental or experimental.
The way the copper "fades" out on the reverse (no finite border to the copper) seems consistent with "haphazard plating" issues.
Are the large raised areas around "WE GOD' and under "STATES" plating blisters or a die issue? (I ask because all the die polish lines are making me wonder if there was damage to the die.)
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
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Pillar of the Community
 United States
6114 Posts |
Here are some close ups of those areas. Note I took the STATES image upside down so things might look incuse as the lighting can trick the brain when done that way. But shows the edges better with that lighting.   |
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Pillar of the Community
United States
5775 Posts |
Thanks for those extra ones.
That last one makes it look like the plating is "bubbling" off in the left corner of the building. I would have to say coupled with the staining it is probably environmental.
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
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Replies: 11 / Views: 1,473 |
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Posted 08/27/2021 05:10 am
