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1984-D Penny What's With The Date & MM?

 
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Author Previous TopicReplies: 4 / Views: 526Next Topic  
Valued Member

United States
393 Posts
 Posted 03/07/2018  5:57 pm Show Profile   Bookmark this topic Add sosicoin to your friends list Get a Link to this Message
Hi, everyone. I found this penny from a bank roll. The MM is flat, there looks like a secondary D to the south of the primary D, so it's not an authentic RPM? Teachers your student is in the process of learning? I still have a lot to learn. what's going on with the date though?
Thanks, everyone...


Rest in Peace
10197 Posts
 Posted 03/07/2018  6:02 pm  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
If it shows any zinc around it it is called "Split plate Doubling" where the edge of the devices cut the thin copper plating. I does look like a bit more tho, an effect known as plate disturbance doubling. When air and other materials are trapped between the layers, stamping pressures force these along the shape of the stamping.
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United States
5390 Posts
 Posted 03/07/2018  6:04 pm  Show Profile   Bookmark this reply Add Chase007 to your friends list Get a Link to this Reply
with Crazyb0.
Valued Member
United States
393 Posts
 Posted 03/07/2018  6:26 pm  Show Profile   Bookmark this reply Add sosicoin to your friends list Get a Link to this Reply
Thanks, You are very good teachers. Kindly look north of MM. That brown looking stuff which looks like icing, what does it make of the D MM? My deepest gratitude of your responses.
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United States
47862 Posts
 Posted 03/07/2018  10:23 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
The date looks like it was roughed up somewhere along the way. No premium for this. Spendable.
Richard S. Cooper
Some have asked about my images I use and I'm glad to say, you can now you can see the DVD in sections on youtube:
1. Intro, older coins, toned coins 2. Doubled dies 3. Die events, One of a kind errors 4. So called errors, Coin information 5. Coin information Types and Varieties, Overlays
Jefferson nickel doubled dies Wexler/Rebar complete listings

trail dies:http://www.traildies.com/
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