1986 D Lincoln Memorial Cent / LMC Partial Copper Plating Vs PMD. How To Tell?

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Author	Replies: 8 / Views: 634
almostpennylane Valued Member United States 101 Posts	Posted 09/08/2025 11:29 pm Hi, stumbled upon this in a roll. I've been searching around on here and online in general to nail down if this is a plating error or PMD. I've seen people pretty split between saying a mint error vs damage. I've also seen a few graded slabs with coins very similar to mine that have listed this as partial copper plating, which also seems to be a fairly common occurrence with these zinc cents. Wondering if there's any particular indicators if it's an error or damage? Would love input. Thanks! Report this Post to the Staff

Errers and Varietys Bedrock of the Community United States 73895 Posts	Posted 09/08/2025 11:44 pm Interesting find. I'll sit out on this one for now. This one is out of my wheelhouse, so I'll let the other members help you. Errers and Varietys. Edited by Errers and Varietys 09/08/2025 11:45 pm Report this Post to the Staff
Marv65 Bedrock of the Community United States 10492 Posts	Posted 09/09/2025 01:27 am Well it could be a few things but partial plating I don't think is one of them on this example "Solid State Diffusion" is when the zinc migrates to the surface of the coin. "Heat" causing toning. "Wear" Take your pick. Report this Post to the Staff
Halo1st Pillar of the Community United States 2775 Posts	Posted 09/09/2025 04:05 am Diameter? Thanks, Doug. Report this Post to the Staff
Spence Moderator United States 34397 Posts	Posted 09/09/2025 07:23 am @alm, it seems to me that you should always default to the simplest, most straight-forward explanation. So unless this cent came directly from sealed mint packaging, I would just assume that the answer is damage. "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
Dearborn Moderator United States 95357 Posts	Posted 09/09/2025 07:41 am We see this quite often, but I don't think that anybody has come up with a definitive answer yet.. 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: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
jbuck Moderator United States 187950 Posts	Posted 09/09/2025 10:36 am Interesting find. Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
almostpennylane Valued Member United States 101 Posts	Posted 09/09/2025 2:05 pm @spence I'm leaning towards damage since I see specs of copper under the scope in the lighter areas. More just a curiosity of mine to see what type of info there is out there (as opposed to finding a unicorn lol) Report this Post to the Staff
almostpennylane Valued Member United States 101 Posts	Posted 09/09/2025 2:08 pm @Dearborn agree ha definitely don't think this is anything special. More just to satisfy my curiosities and hunger for knowledge Report this Post to the Staff
	Replies: 8 / Views: 634

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1986 D LMC Partial Copper Plating Vs PMD. How To Tell?