Error dimes? Novice and need input?

Thanks in advance for your input, gonna keep this short, novice in the coin world and wanted some help with 2 dimes, 1991 P and a 2002 D.

 

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Both are PMD - Post Mint Damage
Not Mint Errors

 

Unfortunately just heavy damage.

 

Ok, well I have a few more coins I’m needing info on, are you up to a yay or nay session?

 

These guys are really good but anything that looks weird keep because you never know will get a 3rd opinion but these guys are excellent on here I give them accolades all the time they're really really helpful especially paddy man

 

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PMD which means post mint damage Imo which means in my opinion but get a second from these guys they know a lot

 

The shield cent is PMD. We don't mind answering questions, but it's also import to learn. Think about the shield cent, what would cause a coin to be minted like that?

 

Nothing that I know of, and have actually serviced and operated machines like turret punch presses, but I’ve seen also seen some similar strange abnormal coins online that were actually graded error coins, that’s why I submitted the dimes because I saw coins with almost identical abnormalities and were infact graded mint damaged coins. So it’s kinda hard for me to be certain unless I ask?

 

No worries, we all started off with no knowledge. So on the dime, think through the minting process. Everything on the coin that is raised, like the bust, face, ear, hair, etc. is actually recessed on the die. In order to create a large depression across the face of the portrait, the die would need to have a large raised line running across the recessed face of the die. The idea is to think about how that could happen.

On the coin with a chunk taken out, it could potentially be a clip, where the planchet is hit twice instead of once while it's being made. But think about what happens when a planchet with material missing is struck by dies. The portion of the coin that is missing does not apply equal and opposite pressure to the die, so the faces of the die are slightly closer where the material is missing and slightly further away on the opposite side of the planchet, leaving a tell tale strike weakness opposite the clip.

Check out this page for more detail:

http://www.error-ref.com/blanking-and-cutting-errors/