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1992 D Lincoln Cent Grade? Error?

 
 
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Valued Member
United States
342 Posts
 Posted 04/23/2017  01:41 am Show Profile   Bookmark this topic Add makescents9 to your friends list Get a Link to this Message





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Pillar of the Community
United States
1000 Posts
 Posted 04/23/2017  03:16 am  Show Profile   Bookmark this reply Add Druu to your friends list Get a Link to this Reply
Die deterioration doubling on both sides. I'm not good at grading, so I'll wait on someone with more experience. I think I do see some wear on Lincoln's jacket, so that would knock it out of the MS range. Full obv pic needed to assess grade as well.
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United States
16113 Posts
 Posted 04/23/2017  1:03 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply
DDD (Die Deterioration Doubling), very common to this issue.







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Valued Member
United States
342 Posts
 Posted 04/25/2017  01:08 am  Show Profile   Bookmark this reply Add makescents9 to your friends list Get a Link to this Reply
Why is that not an error. It's not suppose to be on the coin.
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10197 Posts
 Posted 04/25/2017  01:41 am  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
What happens in machining, dies wear down, crack an break after hundreds of thousand whacks. The devices (letters/numbers) become wider, less distinct. The other factor is machine vibration and heat build up, all takes a toll. The thin plating of copper reacts to these effects. An error is that which is outside of the normal stamping process. Read up on what is the cause of doubled dies, and how RPM's are introduced when the dies are made.
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United States
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 Posted 04/25/2017  06:38 am  Show Profile   Bookmark this reply Add CoinCents to your friends list Get a Link to this Reply
Here is a really helpful link on different forms of doubling.

http://koinpro.tripod.com/Articles/...Doubling.htm

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 Posted 04/25/2017  12:37 pm  Show Profile   Bookmark this reply Add biokemist6 to your friends list Get a Link to this Reply

Quote:
Why is that not an error. It's not suppose to be on the coin.

It is a perfectly normal part of the die aging/wear process, just like minor chips and cracks.
New Member
United States
31 Posts
 Posted 04/25/2017  12:46 pm  Show Profile   Bookmark this reply Add Mitchell Roberts to your friends list Get a Link to this Reply
CC that was a helpful site. Gotta admit though I couldn't see a problem on some of those
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United States
3560 Posts
 Posted 04/25/2017  1:35 pm  Show Profile   Bookmark this reply Add CoinCents to your friends list Get a Link to this Reply
@Mitchell Let me know which ones and I can point them to you.
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 Posted 04/25/2017  4:03 pm  Show Profile   Bookmark this reply Add coinlover1899 to your friends list Get a Link to this Reply

Quote:
DDD (Die Deterioration Doubling), very common to this issue.


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