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 Replies: 17 / Views: 3,677 |
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Pillar of the Community
United States
3516 Posts |
One of the staff members will do it for you. But if you have any modern coins you have questions about that might be errors or varieties, this is the place. Don't be afraid to ask even if you think the question is stupid. There are many people here who love to help.
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Pillar of the Community
United States
5193 Posts |
that's not an error it's environmental damaged.
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Pillar of the Community
 United States
5828 Posts |
 environmental damage, not rusted dies. Sorry! |
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Bedrock of the Community
Australia
21788 Posts |
Unfortunately, I have to agree.
The worn surfaces are also rough.
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Pillar of the Community
United States
4212 Posts |
When I've restored buffs & the dish ran dry, that's the EXACT surface that has appeared.
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Pillar of the Community
United States
3331 Posts |
Quote:
When I've restored buffs & the dish ran dry I am curious: I have no idea what this means?  |
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Pillar of the Community
United States
4212 Posts |
Ha! Pertaining to buffalo nics. When the vinegar drys up, it will leave a deposit pattern. I forgot about them, after a few days.
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Valued Member
 Italy
81 Posts |
If it is an environmental damage is anyone able to explain me how something like that can happen?
Those are not empty bubbles, they are solid metal raising from well defined shapes, then not the case of a partial melting for examples.
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Bedrock of the Community
United States
94367 Posts |
Maybe acid damage? Anyway, not rusted dies for sure.  to the CCF in any event. |
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Pillar of the Community
United States
2189 Posts |
Quote:
If it is an environmental damage is anyone able to explain me how something like that can happen? One problem with that question is if it's just a damaged coin, no one here can explain it with any certainty how the damage occurred as no one here probably did it. The question that needs to be answered is how did it happened during the minting process of the time. If that question can't be answered then it's just a damaged coin. Guessing at what happened is inconclusive. PMD Post Mint Damage IMHO |
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Valued Member
Italy
81 Posts |
"Maybe acid damage? Anyway, not rusted dies for sure."
Coinfrog, this could be a good idea.
Let's imagine a rusted die in very bad conditions and a worker that is in the hurry for mounting it on the machine and starting coining new pieces. Why not to clean it? A little of acid end the die comes back shiny and new!. Just leave it in the liquid for some minutes. But the acid is too strong and attacks deeply the metal making pits and holes. A new die is not ready yet and some production has to be done with this before to use a better one.
If you notice, the details on the legends and eagle on the pitted die of the reverse are like erased, an acid could have done it, otherwise what else?
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Pillar of the Community
United States
1658 Posts |
Definitely did not come from the mint like this. You can tell from the wear on the obverse that the coin was heavily circulated and worn before it came to this condition. The "bumps" would have been worn smooth with the rest of the design if it was minted like this.
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Valued Member
United States
309 Posts |
This is a classic example of a coin that survived a house fire. The bubbles happen near flame. If the heat is very great the dime would show bubbles on both sides and could deform from flat. See other examples pulled from the San Francisco earthquake and fire of 1906. The San Francisco Mint set up tables on the lawn to redeem fire damaged coins like this for a few months after. This coin lay flat on a cool stone surface which protected the obverse. That is my theory.
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Bedrock of the Community
United States
17884 Posts |
Agreed fire damage. Coin was heated to the plastic stage just below the melting point. Tiny gas bubbles trapped inside began expanding creating the lumps on the rev and some in the fields on the obv. The coin was laying on the obverse and that side stayed cooler. Between the slight coolness and the weight of the coin laying on the face the bubbles stayed smaller on that side and basically non-existant on the surfaces actually in contact with the surface below. Then the coin colled and the metal regained its solidity which is why the bubbles are "hard". It isn't a thin film of metal like a plating bubble.
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Bedrock of the Community
United States
94367 Posts |
Yes, Pistareen's and Conder's explanations make perfect sense.
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Replies: 17 / Views: 3,677 |
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Posted 06/03/2016 08:31 am
