1989 D Penny Annealing Or Lamination Error

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Author	Replies: 7 / Views: 393
Kimbwils123 New Member United States 3 Posts	Posted 03/07/2025 8:53 pm Hello, I have been collecting coins for years but just started to really exam them for errors. I have just started learning about errors. I just opened a new roll of 1989 -D pennies and noticed that some of them show the zinc above the letters on the reverse. I think this means the coins were not annealed correctly during the lamination process. I took some pictures. I also saw this on a couple of the dates on the coin. Can someone help me understand what happened during the coin making process to cause this and if it is even an error? Anyone got a good book recommendation on making coins so I can read about the process? Kim Report this Post to the Staff

ijn1944 Bedrock of the Community United States 17009 Posts	Posted 03/07/2025 9:01 pm A little difficult to assess--reflections from the clear mylar may be masking something. For starters, it appears there may (may...) be a split plating issue on the reverse. And, appears to be some Die Deterioration issues on the obverse. Report this Post to the Staff
Spence Moderator United States 32884 Posts	Posted 03/07/2025 9:08 pm I agree with @ijn--next time pls remove the coin from the 2x2 before taking pictures. I mostly see split plate doubling on this cent. "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 Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 55931 Posts	Posted 03/07/2025 9:29 pm Split Plating and Die Deterioration. https://www.error-ref.com/split-plating/ Errers and Varietys. Report this Post to the Staff
Dearborn Moderator United States 66166 Posts	Posted 03/08/2025 12:55 pm I see some split plating on the letters Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 47/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
jbuck Moderator United States 158976 Posts	Posted 03/09/2025 1:14 pm to the Community! Coin Collector Since 1978 My Avatar My Old Avatar My 7070 My Eisenhower Dollars CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
Sharks Pillar of the Community Canada 1520 Posts	Posted 03/09/2025 1:50 pm @Kimbwils - - Sorry, I can't see anything from these pictures. Happily, others can. Edited by Sharks 03/09/2025 1:51 pm Report this Post to the Staff
Cujohn Pillar of the Community United States 7062 Posts	Posted 03/09/2025 5:13 pm to the CCF and split plating. Report this Post to the Staff
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