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Replies: 11 / Views: 513 |
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Valued Member
United States
421 Posts |
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Pillar of the Community
 United States
8742 Posts |
The 83D's have really close RPM's and there could be one hiding in here but no way to tell for sure with all the zinc rot going on here too. Personally, I would toss it and move on.
-makecents-
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Pillar of the Community
United States
780 Posts |
Possibly I don't know what to look for when it comes to zinc rot, but I'm not seeing anything I would call rot in the area of the MM. I couldn't really find any info for 1983D RPMs, but in my eyes this could be a strong candidate.
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Pillar of the Community
 United States
8742 Posts |
Quote: Possibly I don't know what to look for when it comes to zinc rot, but I'm not seeing anything I would call rot in the area of the MM. I couldn't really find any info for 1983D RPMs, but in my eyes this could be a strong candidate. donnie59, pretty much everything around the mm is zinc rot. The listed 83 D RPM's are very subtle and may be hiding in this rot. A couple of links for you to look at. Zinc rot/deterioration: https://www.error-ref.com/zinc-dete...ncoln-cents/ 1983 P RPM's: http://varietyvista.com/02b%20LC%20...%201983D.htm
-makecents-
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Bedrock of the Community
United States
73937 Posts |
Agreed, just zinc rot. PMD.
Errers and Varietys.
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Pillar of the Community
United States
780 Posts |
I see what you guys are saying, but, if you compare the OP's picture to what is shown on Error-Ref I see no comparison with regard to rot. I'm not trying to argue and hopefully I'll learn something today. Can the bloom be removed to show a cleaner coin? It appears that the lower left of the D does show some signs of split plating, but as I said, I'm confused by the absence of any bloom or color. Maybe I'm being dense here, but I truly want to increase my knowledge. Thanks for your patience.
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Pillar of the Community
 United States
8742 Posts |
This is probably some of both, split plating and corrosion due to it. @donnie59. Sometimes the zinc has been exposed and you cannot even see the split or tear. There can also be contaminates trapped under the plating too, which will allow for corrosion to start before the plating is split. A couple more links for you to read and an enlarged picture of Bill Kerr's mm. LINK https://www.error-ref.com/split-plating/ LINK https://www.error-ref.com/?s=blister 
-makecents-
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Valued Member
 United States
421 Posts |
Guys this is the best close up I can get, hopefully it helps. 
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Pillar of the Community
 United States
8742 Posts |
Bill, thank you for the clearer shot of the mm but it is still just damage from corrosion.
-makecents-
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Pillar of the Community
United States
780 Posts |
@makecents, once again thanks for your patients with me on this thread. I believe what you're telling me, but now my gears have started to turn. I have a dreadfully rotted 1982 D S.D. that I'm going to try and clean up. I need to know just how much, or if any of that crud can be cleaned off, and what the coin will look like afterward. As I said, thanks for helping me broaden my knowledge.
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Moderator
 United States
95443 Posts |
I would have to agree with Makecents here on Zinc rot and the remnant of a bubble that burst open.
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Valued Member
 United States
421 Posts |
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Replies: 11 / Views: 513 |
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