1983 Penny Repunched Mint Mark / RPM Or Plating Issue?

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Author	Replies: 6 / Views: 1,262
BarlowAdams Valued Member United States 69 Posts	Posted 12/29/2019 6:45 pm Found this 83 with what, under normal circumstances, I would think was a double punch mint mark, but I know coins from this transitional year can have zinc rot plating issues that mimic DPMM. Any experts care to weigh in for me? Edited by BarlowAdams 12/30/2019 12:26 am Report this Post to the Staff

coop Bedrock of the Community United States 62064 Posts	Posted 12/29/2019 6:47 pm Die Deterioration on the date is starting to show. Also the mintmark area may have had the plating split, making the zinc to be exposed. Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 12/29/2019 7:30 pm DPMM is not the proper terminology. It is called a RPM=repunched mint mark. John1 Report this Post to the Staff
BarlowAdams Valued Member United States 69 Posts	Posted 12/30/2019 12:36 am Coop, I have a 1996 nickel with a suspect mint mark. It wouldn't be a RPM because didn't they change the process by then? Report this Post to the Staff
BarlowAdams Valued Member United States 69 Posts	Posted 12/30/2019 02:16 am What I mean to ask is, is this a similar kind of error? Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 12/30/2019 04:14 am Not an error,it is MD.RPM's stopped in 1990. John1 Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 12/31/2019 3:27 pm Why? Before 1990, the mintmarks were added to the completed dies. When added the mintmarks to the die, the locations/angles/even some mint ID's were not the same because they were added by hand. Thus the locations were a target area. RPMs appeared on different locations, depth of punchings, weak punchings, all these thing varied for years. But since 1990, the locations, sizes of the devices are all the same. Because they are since then on the dies. I liked the hand punched dies as they made matching up mintmark locations (because they varied) easy to identify RPM (Re-Punch-Mintmarks) and doubled dies because the the mintmark locations. That is why. Report this Post to the Staff
	Replies: 6 / Views: 1,262

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1983 Penny RPM Or Plating Issue?