1929-D penny RPM 1 1

[Hinkle]

I am the worst to detect Doubled dies and RPMS. thought I would show,  but thinking this could be erosion around the mint mark. There's only one I found searching on variety vista, that one shows north of the mint mark. 

Edited November 25, 2023 by Hinkle
Mint mark correction D instead of S

[Greenstang]

I think “erosion around the mintmark” would be correct.

[Mike Meenderink]

Its just a blobby mint mark that has bloomed with sticky icky black /green verdi. Yuccck Keep that coin and others like it away from your other coins. Verdigris or coin cancer is contagious to other copper and silver coins. It can spread to other coins it contacts or even to coins it never contacts. Be aware. Most collectors either remediate and stop/ remove the verdigris or immediately dispense with the coin..ie: get it outta there..trash it

Edited November 25, 2023 by Mike Meenderink

[dprince1138]

Seems to be some corrosion, but the best method to determine if there was a die variety is to check the NGC die variety plus.  There is not an indication of a DD mint mark for 1929.  Of course, on extremely rare instances, there could be one off errors.

United States Categories | VarietyPlus® | NGC

[powermad5000]

On 11/25/2023 at 10:54 AM, dprince1138 said:

There is not an indication of a DD mint mark

What exactly is a DD mint mark? A doubled die mint mark?????