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 Replies: 11 / Views: 809 |
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New Member
United States
9 Posts |
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Pillar of the Community
 United States
1259 Posts |
Looks like acid or perhaps a metal detector discovery. Definitely not post mint damage. Spend it before it falls apart.
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Bedrock of the Community
United States
73945 Posts |
It looks like acid damage. PMD. Just a spender. Errers and Varietys.
Edited by Errers and Varietys
11/06/2024 11:13 pm
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New Member
 United States
9 Posts |
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Pillar of the Community
United States
3535 Posts |
Agree, damage from acid exposure. Always best to post photos of full Front & Back of coin. (Obverse & Reverse)
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Pillar of the Community
United States
1791 Posts |
Cleaning a corroded coin can look like that. I have several from my days playing around with electrolysis.
Actually, the coin in my profile picture was one I did electrolysis on. The front was perfect but the reverse of the coin was severely corroded - no details left.
Edited by Seeker_101
11/06/2024 11:23 pm
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Moderator
 United States
56855 Posts |
mote060,  Weight? It is PMD but it might be one of two things. Acid damage would make it weigh less and heat damage where it would weigh near normal. John1  |
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Moderator
United States
95443 Posts |
to CCF a 'blowtorch' treatment? or maybe wizzing loge ago with a wire brush on a drill. |
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Bedrock of the Community
United States
94367 Posts |
Nasty customer. to the CCF! |
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Pillar of the Community
United States
6495 Posts |
The electrolysis theory reasonates with me, although prolonged acid damage would probably be similar. Electro-etching strips all the high areas first, and that compounds as the donor electrode loses metal into the solution. The result can be really pitted and wavy as all the original tiny surface imperfections get eaten away.
Cleaning the corrosion off a coin is also a good theory. The reactant would strip all the corroded material, which could have eaten the metal in strange patterns.
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Pillar of the Community
United States
1791 Posts |
Yes Brand. Electrolysis breaks the bond from the metal and whatever is on it. In the cases of severe verdigris and bronze disease, you can be left with a pitted surface, wave-like ripples, etc. It depends on how the metal was attacked. Here is another example that I had to resort to electrolysis on.  |
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Moderator
United States
188110 Posts |
Poor Abe deserved better!  |
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Replies: 11 / Views: 809 |
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Posted 11/06/2024 11:13 pm
