Is it possible to have a mm/mm on a 1992 ?

This 1992 LMC has what looks like a D/D mm. Is that even possible? Thank you.

 

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No.
The mint marks were punched into the master hubs by this point. What you are seeing is die deterioration/split plate doubling.
Common on Zincolns.

 

No the mint stopped hand punching mint marks for cents in 1989 your just seeing zinc rot and its not a CAM. https://www.coinworld.com/news/precious-metals/some-coins-exhibit-multiple-punches-for-mint-mark.html#:~:text=Beginning in 1990 for cents,and eliminating repunched Mint marks.

 

Yes D/D mintmarks are not only possible, they exist and are called Repunched Mint Marks (RPM's).

Your coin is not one. The copper layer has been pulled away leaving the zinc showing under the "D" when the coin was struck.

 

You have a fine example of split plate doubling, which is another form of NAV. The copper plating on this zinc cent is what causes it to look this way. Common.

 

Come on Potty. Are you seeing pariedolia in my text ? There is no mention of a CAM there.

 

Nope,i mentioned it anyway just in case you didn't know.

 

@Martha Lynn I like to find these. Worth nothing but fun to find and keep.