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Replies: 23 / Views: 6,369 |
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Valued Member
United States
79 Posts |
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Valued Member
United States
221 Posts |
Glare at the bottom of the MM makes it hard to tell. It definitely does not look like a D over S, but it might be a D/D. It is most likley a damaged punch, but wait for the experts opinions. -CRHer
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Bedrock of the Community
United States
62064 Posts |
It is a 'D' mint mark. The post that makes the center of the mint mark has broken off the die. It is even expanding a little deeper that the mint mark. So that missing post leaves the center of the mint mark unformed, and the chip out of the die area that held the post, it now making a raised area above the mint mark. So the post and the die material is altering a normal mint mark, (no RPM) leaving the center filled and a bit above the mint mark. Each coin after this event happened will show the exact same thing. It is just a die event that sometimes happens. No premium for this.
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Valued Member
 United States
79 Posts |
Thank you..I seen something similar on a 44..couldn't make out what it was
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Bedrock of the Community
United States
62064 Posts |
This can happen on the pre 1990 coins more. The punching must make the die weaker. But it isn't all that common so who knows for sure why it happens. We just know it does.
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Pillar of the Community
United States
5964 Posts |
Quote: The punching must make the die weaker I bet that is the case. J4337, the mintmarks were hand punched into the dies before 1990.
Edited by CoinMasters 05/12/2016 12:29 am
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Valued Member
 United States
79 Posts |
Interesting..thanks alot for the info!
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Bedrock of the Community
United States
62064 Posts |
Here is a drawing of a broken post on the letter 'B' on LIBERTY to help how how this happens. 
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Valued Member
 United States
79 Posts |
Ok I see..I was wondering how an S could appear on a D. Makes sense now ..thank you
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Bedrock of the Community
United States
62064 Posts |
I've added a few images to put this all together in one image. 
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New Member
United States
7 Posts |
I just got a 1979 Lincoln . The mm looks like a s bit thats not possible since its. Not a proof. My cent looks exactly like yours. The s is exactly the same.
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Bedrock of the Community
United States
62064 Posts |
If the mintmark location is the same, it could be from the same die pair?
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New Member
United States
7 Posts |
I JUST sent 69 coins to PCGS. 55 are 1905 Micro o dimes. But when I showed my dealer in Houston he said to include it in the batch. My coin has the S and it has serifs. Thats,hard to believe... serifs.... and the S sits rigjt over the top of the D. This coin has no blobs. Its off to PCGS today.
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Bedrock of the Community
United States
62064 Posts |
But note on this one the broken post broke off below the fields. Why does that matter? Because the broken post, broke off the field area make the void taller on the coin. Now it extends over the top of the mintmark. So this is not a S/D but just a broken post.  On the 1978 cent you can see the same thing. It broke off below the fields and it now extends over the top of the mintmark. On an over mintmark, the mintmark is above the previous mintmark. So not the image below of the 'D over S' 
Edited by coop 12/24/2019 3:08 pm
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Pillar of the Community
United States
751 Posts |
J4337;
I lean towards the broken post in the D mint mark, but seeing that others have the same flaw, I hope you return and tell us what PCGS said.
Dan
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Pillar of the Community
United States
751 Posts |
Here is a blow up of the area in question. It more clearly shows the damage to the die. Dan 
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Replies: 23 / Views: 6,369 |