1993 D Penny Messed Up Repunched Mint Mark / RPM ?

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Author	Replies: 10 / Views: 586
Frankleska New Member United States 16 Posts	Posted 07/23/2025 7:07 pm help? Report this Post to the Staff

Frankleska New Member United States 16 Posts	Posted 07/23/2025 7:14 pm better image Report this Post to the Staff
Marv65 Bedrock of the Community United States 10547 Posts	Posted 07/23/2025 8:26 pm Just a nice spot of zinc rot! Report this Post to the Staff
ijn1944 Bedrock of the Community United States 19159 Posts	Posted 07/23/2025 8:42 pm Yes, classic zinc core Memorial cent mint mark zinc rot--likely triggered by split plating. Report this Post to the Staff
JimmyD Bedrock of the Community Canada 21610 Posts	Posted 07/23/2025 9:36 pm True, it's messed up by zinc rot. Very common zincoins. Report this Post to the Staff
Sap Moderator Australia 16830 Posts	Posted 07/23/2025 9:43 pm It cannot be a "repunched mintmark", because the coin has a 1993 date and in US mints the practice of punching mintmarks separately onto dies or hubs ceased in 1990. Zinc rot causes bubbles to form randomly across a coin's surface. Sometimes, a bubble forms directly underneath the mintmark, lifting it up. When the bubble collapses, it forms a volcano-like ring, often with the copper corroded away from the centre. In short: anytime you find a round or ring-shaped feature on a zincoln, assume it's zinc rot. The probability of an actual error in the minting process causing a defect that's nice and round like that, is virtually zero. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 74233 Posts	Posted 07/23/2025 10:13 pm I agree with above. PMD. Errers and Varietys. Report this Post to the Staff
Dearborn Moderator United States 96214 Posts	Posted 07/24/2025 07:59 am yep, a rather large burst zinc bubble. 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 188617 Posts	Posted 07/24/2025 09:34 am The curse of Zincoln. 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
Frankleska New Member United States 16 Posts	Posted 07/24/2025 2:25 pm thankyou, these are the responses a newbie needs to here Report this Post to the Staff
Bestjet Valued Member United States 271 Posts	Posted 07/24/2025 4:04 pm Frankleska, I'm a newbie per se, only 250 post or so in 2+ yrs, but I have never had anyone treat me like a turd. All have been great in their info and suggestions. I have been reading even longer and never seen any mistreatment of newbies or anyone. I may not like what I'm told by everyone , but never have I thought anyone was being mean or disrespectful. Just hang in there cause it's tough when you think you have something and they tell you you don't. So much to learn from these great people. Good luck in your searches. Report this Post to the Staff
	Replies: 10 / Views: 586

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1993 D Penny Messed Up RPM?