1998D Dime with partial missing clad???

Not sure if it happened PMD or at mint. Would it cause doubling if it happened at the mint is my second question.

 

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I'm not sure what it is but that is nothing to do with partial missing clad. Some kind of damage IMHO.

 

Thanks paddyman...then it would most likely be PMD?

 

yes, PMD

 

Looks like a chemical was on the coin on
both sides (same area).

The green verdigris might be a sign of it too.

Not a clad layer defect, imo.

 

PMD

 

I agree with Fred, as always.

Reed

 

Appears to have been subjected to some acidic chemical. It ate away at the metal.

 

Here is a quarter with a partial missing clad.

 

Was this coin dipped in something? It doesn't look like a mint problem in my opinion.

 

Not my coin. Just a dramatic partial missing clad error.

 

This type of error can and does happen at the Mint. Not all the time but is can happen.

 

On the photo I showed, if the clad had been removed post strike, the details on the copper side would be mushy.
But, if the coin was struck with the clad already missing, then you can see the
details are much sharper.