1990 Penny Possible Error On Reverse

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Author	Replies: 8 / Views: 1,322
EA_C New Member United States 27 Posts	Posted 01/22/2021 11:34 am I found this 1990 penny and on the back, there is what looks like some kind of raised substance. However, I tried chipping it with my fingernail and no matter how hard I tried, nothing comes off. Unlike with other pennies where if they have glue or something on them, it comes off when I try. It kind of looks like this penny has some extra random copper layering on the back, over the Lincoln Memorial in particular. One reason I think it may be an error and not a substance from the environment is because it looks to me like some of the letters on the word Unum are raised up with the substance underneath them. Which makes me wonder if it was a mint error that happened before the words got stamped on? I guess I'm probably grasping at straws here, but what do you guys think? Report this Post to the Staff

JimmyD Bedrock of the Community Canada 21655 Posts	Posted 01/22/2021 12:09 pm Not an error, it's PMD. Not sure what it is but I am sure that could not happen during the striking of the coin which is the only time that an error can occur. Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 01/22/2021 12:12 pm Can we see the obverse, please. And please show your images right-side up! to the CCF! Report this Post to the Staff
Kloccwork419 Pillar of the Community United States 1359 Posts	Posted 01/22/2021 12:14 pm AAHHH. The got you thinking it wasnt glue error. lol. Its just glue, or another clear residue, no error Edited by Kloccwork419 01/22/2021 12:15 pm Report this Post to the Staff
Rothery Pillar of the Community 2145 Posts	Posted 01/22/2021 1:40 pm Right, probably some type of clear adhesive as you can see through it. Give it a soak in acetone if you want to remove it. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 01/22/2021 4:31 pm Or stain, if it was a cup holder coin? Report this Post to the Staff
EA_C New Member United States 27 Posts	Posted 01/22/2021 7:28 pm Sorry, I don't know why both pictures showed upside down. Here's a couple more photos as requested. Report this Post to the Staff
merclover Bedrock of the Community United States 10635 Posts	Posted 01/22/2021 9:39 pm Adhesive or stain, post mint damage ( PMD). no mint error, sorry. Keep searching! Report this Post to the Staff
EA_C New Member United States 27 Posts	Posted 01/23/2021 12:44 pm Thanks for the help! Report this Post to the Staff
	Replies: 8 / Views: 1,322

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