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 Replies: 23 / Views: 4,916 |
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New Member
United States
6 Posts |
Hello, I am pretty sure this is a man-made error but I thought I would double check to see what everyone thought? Appreciate any help! Thank you!     |
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Bedrock of the Community
United States
62064 Posts |
Dipped into acid. The copper reacted more to whatever type of acid used.
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Pillar of the Community
5464 Posts |
It's not called a man-made error, it's called environmental or PMD. I don't know the official explanation on how this occurs. It has something to do with the deterioration or corrosion of the inner clad of the coin. |
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Bedrock of the Community
United States
62064 Posts |
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Pillar of the Community
5464 Posts |
Quote:
It is a man made error. Hmmm, you're good coop but I gotta disagree with this statement. Is "man made error" an official numismatic term? I might be wrong but I've never seen "man made error" on a slab.
Edited by USSID18
11/02/2018 11:17 pm
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Bedrock of the Community
 United States
12442 Posts |
To me, it appears to be a coin buried in acidic soil for some time. @coop said "dipped into acid", but I don't think so. It appears to have other signs of being buried, such as general discoloration. The "trough" along the edge is, in fact, due to acid that eats away the copper layer much faster than the surrounding CuNi layers. However, acidic conditions can readily be found in the soil around us. Given enough time (which a coin from 1967 allows) the soil can have very similar effects to a much quicker bath in a more concentrated acid.  In Memory of Crazyb0 12-26-1951 to 7-27-2020
In Memory of Tootallious 3-31-1964 to 4-15-2020
In Memory of T-BOP 10-12-1949 to 1-19-2024
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Moderator
 United States
56855 Posts |
Buried or done on purpose,it is from being in an acidic environment  . John1 |
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Valued Member
United States
366 Posts |
i have seen coins like that before - they were found metal detecting at the beach
the salt water seems to eat away at the cladding on the rim
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Bedrock of the Community
United States
63514 Posts |
Oh well.  To CCF! Errers and Varietys.
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Bedrock of the Community
United States
94367 Posts |
Good question, good answers! to the CCF! |
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Pillar of the Community
7234 Posts |
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It is a man made error. If it was in the ground how was that "Man Made" ? And where did that term come from? In todays PC crazy world that term may be unaceptable.
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Pillar of the Community
5464 Posts |
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"If it was in the ground how was that "Man Made" ? Because a man must have planted it in the ground! 
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Bedrock of the Community
United States
62064 Posts |
And harvested it!  |
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Bedrock of the Community
United States
34628 Posts |
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Pillar of the Community
United States
8715 Posts |
Yep, some PMD - whether buried in the ground or acid dipped, it's not a mint error. to the CCF! |
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Valued Member
United States
366 Posts |
Quote:
If it was in the ground how was that "Man Made" ? And where did that term come from? In todays PC crazy world that term may be unaceptable. man-made - did not come from the mint in that condition or from the minting process - a person had a hand in making it post mint. who cares where it came from - its widely used, this is a coin forum not an english composition forum. why would it be un-acceptable, I think you are just trying to stir up a problem where none exists. in this case it means it was made by a HUMAN
Edited by twistedt
11/03/2018 1:37 pm
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Replies: 23 / Views: 4,916 |
Posted 11/02/2018 10:14 pm
