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1979 LMC S Over D Mintmark?

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Valued Member

United States
79 Posts
 Posted 05/11/2016  10:49 pm Show Profile   Bookmark this topic Add J4337 to your friends list Get a Link to this Message Number of Subscribers
Hello all...can anyone help me decipher which mintmark this is? It looks like a D in one aspect, and an S in another..

1979-LMC-S-Over-D-Mintmark?

1979-LMC-S-Over-D-Mintmark?

1979-LMC-S-Over-D-Mintmark?

1979-LMC-S-Over-D-Mintmark?

1979-LMC-S-Over-D-Mintmark?
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CRHer's Avatar
United States
221 Posts
 Posted 05/11/2016  10:52 pm  Show Profile   Bookmark this reply Add CRHer to your friends list Get a Link to this Reply
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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coop's Avatar
United States
62064 Posts
 Posted 05/11/2016  11:50 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
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.
Valued Member
United States
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 Posted 05/11/2016  11:58 pm  Show Profile   Bookmark this reply Add J4337 to your friends list Get a Link to this Reply
Thank you..I seen something similar on a 44..couldn't make out what it was
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coop's Avatar
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 Posted 05/12/2016  12:00 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
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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CoinMasters's Avatar
United States
5964 Posts
 Posted 05/12/2016  12:27 am  Show Profile   Bookmark this reply Add CoinMasters to your friends list Get a Link to this Reply

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
Valued Member
United States
79 Posts
 Posted 05/12/2016  01:19 am  Show Profile   Bookmark this reply Add J4337 to your friends list Get a Link to this Reply
Interesting..thanks alot for the info!
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coop's Avatar
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62064 Posts
 Posted 05/12/2016  1:45 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Here is a drawing of a broken post on the letter 'B' on LIBERTY to help how how this happens.
1979-LMC-S-Over-D-Mintmark?
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79 Posts
 Posted 05/19/2016  06:31 am  Show Profile   Bookmark this reply Add J4337 to your friends list Get a Link to this Reply
Ok I see..I was wondering how an S could appear on a D. Makes sense now ..thank you
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coop's Avatar
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62064 Posts
 Posted 05/19/2016  4:45 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
I've added a few images to put this all together in one image.
1979-LMC-S-Over-D-Mintmark?
New Member
United States
7 Posts
 Posted 12/24/2019  12:15 pm  Show Profile   Bookmark this reply Add Jsmli6659 to your friends list Get a Link to this Reply
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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coop's Avatar
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62064 Posts
 Posted 12/24/2019  12:20 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
If the mintmark location is the same, it could be from the same die pair?
New Member
United States
7 Posts
 Posted 12/24/2019  2:59 pm  Show Profile   Bookmark this reply Add Jsmli6659 to your friends list Get a Link to this Reply
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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coop's Avatar
United States
62064 Posts
 Posted 12/24/2019  3:06 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
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.

1979-LMC-S-Over-D-Mintmark?
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'
1979-LMC-S-Over-D-Mintmark?
Edited by coop
12/24/2019 3:08 pm
Pillar of the Community
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751 Posts
 Posted 12/24/2019  3:16 pm  Show Profile   Bookmark this reply Add Panther to your friends list Get a Link to this Reply
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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 Posted 12/24/2019  3:22 pm  Show Profile   Bookmark this reply Add Panther to your friends list Get a Link to this Reply
Here is a blow up of the area in question.
It more clearly shows the damage to the die.

Dan
1979-LMC-S-Over-D-Mintmark?
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