1990 D Lincoln Memorial Cent / LMC , Broken Die Or Damaged Zinc Before Copper Coating?

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Author	Replies: 8 / Views: 1,548
Jim0815 Pillar of the Community United States 5239 Posts	Posted 02/27/2018 09:10 am I found this fascinating 1990 D LMC this morning and am wondering what you all think. I do not believe it is PMD as the rim is not affected by these indentions. I am inclined to think the zinc was damaged before being copper coated and was punched into a blank. Insight from the experts please! Report this Post to the Staff

John1 Moderator United States 56855 Posts	Posted 02/27/2018 09:29 am My thought is Struck Through Grease and a nice one<if that is what it is. John1 Report this Post to the Staff
Jim0815 Pillar of the Community United States 5239 Posts	Posted 02/27/2018 1:15 pm @John1, you may very well be right. I guess with experience running presses for years I just cannot wrap my mind around what type of grease would have that type of rigidity to cause a negative to imprint on a positive. I can see the devises being grease filled and impeding the pressing process but they only omit the devise. I love this site and learning from you and all the other knowledgeable people like you. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 02/27/2018 1:37 pm Are these incuse marks or raised? (It looks incuse from what I can see, but not sure) What is the mark east of the brow line? (looks like a letter) To me it seem unusual that they area in question if it is a struck through didn't slide into the face area? There maybe a case of oil with heave debris on the field, affecting the 'ST' on TRUST. But the areas on the lower part of the obverse, don't make much sense? Report this Post to the Staff
Jim0815 Pillar of the Community United States 5239 Posts	Posted 02/27/2018 1:39 pm Mr. Coop, they are incused. If you can see the third picture it is incused right where you are seeing that mark. That's what makes think that the zinc layer was damaged before the thin layer of copper was applied. That's just a guess. Edited by Jim0815 02/27/2018 1:44 pm Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 02/27/2018 1:51 pm The fourth image help me understand the area east of the brow area that looked like a letter. There is a curve there in the incuse area that is still raised. That much be as John1 says: Struck Through Grease, but there must be some debris in it that prevented it from dropping into the deeper part of the die on the face area. It did fall into the deeper part of the die on lapel area, preventing that area and part of the mint mark not to be formed. I would save it for now. But probably much of a premium for this. I would call it unique. Probably on the next coin that was struck it was moved around more on the die into the deeper areas. Report this Post to the Staff
Jim0815 Pillar of the Community United States 5239 Posts	Posted 02/27/2018 1:59 pm Yes sir, I definitely am putting this in a 2x2. The weight of this cent is 2.56 g Edited by Jim0815 02/27/2018 2:03 pm Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 02/27/2018 2:05 pm Which is slightly higher, but within Weight Tolerance. The event happened during the strike, so the copper plating was already in place. Report this Post to the Staff
Jim0815 Pillar of the Community United States 5239 Posts	Posted 02/27/2018 2:20 pm Yes sir. I just added that for informations sake. Report this Post to the Staff
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1990 D LMC, Broken Die Or Damaged Zinc Before Copper Coating?