Filled S, or D over S one cent?

Looks like a D over an S, but it could be a filled S. The 1979 does list a filled S type 1 in the red book. This was in regular circulation.

 

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It does look like it could be a D over S. I'm not 100% sure, though.

Chris

 

I have to agree with you...

 

Agreed with the two above, it does look like a D over an S but that just doesn't make cents!

 

Wouldn't the two marks come from different mints? Do you know if they share dies, and would use one from another mint?
Thanks Seattlite86.

 

I'm not exactly sure what to think here. I don't know of them sharing dies in that year. I do know that there are two Mint Mark styles for the San Francisco Mint and maybe yours used to be a proof and just happened to be the "filled S" that looks exactly like a D/S?
http://lincolncentresource.com/San_Fransisco_Mintmark_Styles.html
http://davescoins.net/info/1979varieties.htm
http://cointrackers.com/coins/13687/1979-lincoln-penny/ (note the small comment about the two S's being minted)

 

An odd shaped die chip?

 

Thanks for the links. It resembles the Davescoins one, but the upper point of the D is there. I don't know, but I won't spend it until I can get it looked at.

 

I wouldn't spend it anyway, it's pretty cool.

 

Weren't all of the mintmarks placed on the dies at Philadelphia before shipping them to the branch mints?

Chris

 

I found this on 'The United States Mint' website near the bottom of the article...

" In addition, all working dies needed for the Denver facility are produced by the Denver Die Manufacturing Division along with some of the dies for the for the United States Mint at San Francisco."

I would assume it's possible to mix them up and have two mint marks on the same die.
http://www.usmint.gov/about_the_mint/collectors_corner/?action=mint_marks

 

The first part of that paragraph indicates that the mintmarks were placed on the working hub in Philadelphia.

This is just a guess, but I think the "Denver Die Manufacturing Division" is not actually located at the Denver Mint. Rather, it is a subsection of the "Die Manufacturing Division" of the Philadelphia Mint.

"All master dies, including those used in the Mint's numismatics and medals programs, are manufactured in the Die Manufacturing Division of the Philadelphia Mint. Mint marks are placed in the hub at Philadelphia. This hub is the tool that produces the working dies used to stamp the coins. Working dies are then delivered to the appropriate Mint facility for coinage purposes. In addition, all working dies needed for the Denver facility are produced by the Denver Die Manufacturing Division along with some of the dies for the for the United States Mint at San Francisco. Because of its secondary position in any coin designs, it has been the custom to make the mint mark as inconspicuous as possible and still be functional."

Chris

 

I've tried to find references to this for this year coin, but only see it in older cents like the 1944 or 1946.
Ken Potter's page (http://koinpro.tripod.com/ErrorVarietyList.htm) has a large list of D/D RPM or S/S RPM, but not much on D/S RPM. Assuming this is actually a D over S, I would guess it's rare.

 

I see a mint mark with a die chip; the center curve of an "S" doesn't run straight like that.

 

Here are the various mintmarks used on Lincoln cents.

http://lincolncentresource.com/San_Fransisco_Mintmark_Styles.html

Chris

 

I agree with SuperDave. Chip.

 

Jim, since the center of a "D" is a post on the die, how can you explain the fact that it runs diagonally through the post without the rest of it breaking away?

Chris

 

Looks like a filled, or partially filled D, that took a hit on the bottom left and pushed up metal from there to what appears to be the cross of an S.

 

I beat you to it by about 15 hours

 

Perhaps SuperDave is blocking you because I was responding to his comment (not yours) which was about 13 hours after your post.

Chris