Machine Doubling And DDD? (1992 Cent)

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Author	Replies: 8 / Views: 724
TavMS New Member United States 30 Posts	Posted 09/12/2023 10:01 am * Edited by Staff to Add Year / Mintmark / Denomination to Title. It's very important to have in the title. * Came across a good example of Machine Doubling (Pretty certain?) that I could see without magnification. There also seems to be a smooth patch that obscures the "o" in "of" on the reverse of the coin that looks like Die Deterioration? Or is that some kind of abrasion? I know these things don't make the coin worth anything, my purpose with this post is more just to verify if I'm identifying these things correctly :) With Machine Doubling, what I should be looking for is a flat, shelf-like appearance that doesn't follow the contours of the design as opposed to a true doubled die that follows the contours of the design? Report this Post to the Staff

Errers and Varietys Bedrock of the Community United States 75330 Posts	Posted 09/12/2023 11:13 am Maybe Split Plating Doubling? https://www.error-ref.com/split-plating/ Errers and Varietys. Report this Post to the Staff
Brandmeister Pillar of the Community United States 6606 Posts	Posted 09/12/2023 11:32 am The vanishing letters could be the result of a Grease Filled Die, or possibly extreme die polishing. Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 09/12/2023 11:35 am In your 1st pic looks like zinc showing but I think that is glare. Looks like MD, and the smooth patch is a common weak area caused by the metal being used up on the opposite side of the coin. John1 Report this Post to the Staff
TavMS New Member United States 30 Posts	Posted 09/12/2023 12:16 pm "caused by the metal being used up on the opposite side of the coin." Do you mind explaining that in a little more detail? That makes total sense because I've noticed similar wear in the same place on a lot of pennies from different years. Thanks! Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 09/12/2023 12:59 pm The bottom part of Lincolns bust on the obverse uses up a bit too much metal. John1 Report this Post to the Staff
Dearborn Moderator United States 98753 Posts	Posted 09/12/2023 5:45 pm agreed, the bust is a huge metal hog, and didn't have enough to fully strike up the reverse. 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
donnie59 Pillar of the Community United States 782 Posts	Posted 09/12/2023 8:34 pm I've often wondered why that was such a common weak strike point on Lincolns. Report this Post to the Staff
TavMS New Member United States 30 Posts	Posted 09/13/2023 08:29 am Thanks, everyone! Report this Post to the Staff
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