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1991 Penny With Doubling On Both Sides

 
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Author Previous TopicReplies: 6 / Views: 289Next Topic  
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 Posted 09/30/2022  10:26 am Show Profile   Bookmark this topic Add Hillofbeans to your friends list Get a Link to this Message
I know that this is likely Mechanical Doubling, and thought I'd ask here.
I figured that if I'm correct this could help me determine the difference between a true doubled die and Mechanical Doubling.
Lincoln's head is doubled on to obverse, and on the reverse everything is doubled.

My magnifier has lost its light so these are just small sections of the doubling. Hope it's enough to tell. I honestly believe it's Mechanical Doubling.

Thanks your your help, you smart coin people. :

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 Posted 09/30/2022  10:29 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Pics are a bit too close up,but looks like split copper plating to me.
John1
( I'm no pro, it's just my humble opinion )
Searched 6.5 +/- Million Cents Since 1971
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 Posted 09/30/2022  10:37 am  Show Profile   Bookmark this reply Add Hillofbeans to your friends list Get a Link to this Reply
Thank you John 1. So it's not Mechanical Doubling, it's split copper plating.
Well, I learned a new term for what to look for on my coins.
Thank you!
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 Posted 09/30/2022  11:14 am  Show Profile   Bookmark this reply Add ijn1944 to your friends list Get a Link to this Reply
I wouldn't draw conclusions until seeing full, large and sharp pics of the obverse and reverse.
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 Posted 09/30/2022  11:26 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
It could be both. The Machine Doubling could have caused the split plating. The MD comes after the strike. So if all the MD and split plating happen in the same direction, then that could be the cause. If there is no link between the two, then a strong strike affected the split plating. So it could/isn't depending on the forensics of what happen on the coin. Direction or not, no direction or not. More than one striking event can happen at the same time, or not be related. Either way, it is not a doubled die. Split plating can also be seen on variety coins. But if you see this on variety coin, pass it bye. Because the split plating is an issue that can shorten the life of plated coin.

If you see gray or swelling on the mintmark SE direction, you might want to no obtain that coin. (Zinc rot could shorten this coins life as it ages)

CoopHome: Can split plating affect the life expectancy of plated zinc coin? yes. zinc rot can take over and the coin could be affected.
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/
Edited by coop
09/30/2022 11:27 am
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