GBrad Posted March 19, 2020 Share Posted March 19, 2020 Looking for some comments and opinions on what happened here. I‘m fairly certain it’s not PMD as the “lower” mint mark is clearly punched and rounded from the mint. I thought that RPM’s or OMM’s weren’t supposed to exist for some time now. I had to use my loupe on my cell camera to take this pic but it turned out ok. Still learning here. Thanks!! -Greg Link to comment Share on other sites More sharing options...
GBrad Posted March 19, 2020 Author Share Posted March 19, 2020 Link to comment Share on other sites More sharing options...
Greenstang Posted March 19, 2020 Share Posted March 19, 2020 It's a plating bubble. This has been a problem since 1982 when they started making the cores out of zinc. Eventually it will break and zinc rot will set in. Link to comment Share on other sites More sharing options...
GBrad Posted March 19, 2020 Author Share Posted March 19, 2020 Gotcha!! Thanks for the info. 👍 Link to comment Share on other sites More sharing options...
Conder101 Posted March 19, 2020 Share Posted March 19, 2020 I think zinc rot has already set in. Link to comment Share on other sites More sharing options...
GBrad Posted March 20, 2020 Author Share Posted March 20, 2020 Thank you all for your input. I’m starting to feel like a “newbie” all over again. The thing that caught my eye with this coin is that the raised effect/ “lettering” under and beside the D MM looks to be part of the minting process. It’s very hard to tell in the pic as I could not get a good clear pic. It actually looks to be rounded and has good copper color. The “silver” discoloration was there when I found it and I’m sure it totally has to do with this zinc type issue. I will stash it in my “not so cool” collection, LOL. Believe me, I’ve found numerous coins that I have not posted but have done a lot of research online only to find that they are just poor/weak punches, useless errors, non-varieties, etc...... I will soon be posting a 1975 P Lincoln cent for observation for you guys for your opinion. I know there’s never been a true DDR found on this year cent but there’s always a first..... probably what keeps me looking for hours at a time.... this is addictive!! Ha. It’s getting much much more easier for me to to discern between true known varieties and just plain junk. Thanks again for all you guy’s responses. -Greg Link to comment Share on other sites More sharing options...
Greenstang Posted March 20, 2020 Share Posted March 20, 2020 As was previously stated on another of your posts, it is nice to see a "newbie" who is willing to learn and do research on his own. (Unlike some here who find it easier to just post without trying to figure it out on their own.) Your learning fast. I'm sure nobody on this Forum would have any qualms about answering any questions you may have. Let's see your 1975P Lincoln Link to comment Share on other sites More sharing options...
GBrad Posted March 21, 2020 Author Share Posted March 21, 2020 Hey Greenstang and thank you for the nice comment. Been working on some of my equipment before it started raining yet again here in Georgia....... Geese!!!! I will try to take some pics tonight of the 1975 and post. Thanks again!!! Link to comment Share on other sites More sharing options...
