Interior Die Break 1987

I tried to scrape this off with a tooth pick but it did not budge. I believe it's an interior die break.

 

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Really can't tell if its a chip or zinc rot.

 

I tried to scrape it with a tooth pick and nothing happened.

 

edited to delete.

 

It’s zinc and copper coated at that. Just an in popped blister I think.

 

Yeah, that makes sense to me as well, but scraping it pretty hard had no effect. That's why I posted it, guess a plating blister can be hard.

 

They can be.

 

Looks like an early stage IDB.

http://cuds-on-coins.com/lincoln-cent-idb-1959-2008/