Nickel: Error or PMD?

I found this nickel roll hunting, curious whether it's a mint error or not.
The 'flakiness' on the perimeter of the coin seems to be metal as opposed to an adhesive of some sort.

 

Log in or Sign up to hide this ad.

Looks like a dryer coin to me. PMD.

 

Thanks, ya I'm still learning when it comes to errors, figured there may have been a chance of it being some sort of striking error.
Oh well. I'll keep looking and combing through books, having the knowledge to identify errors takes quite a bit of research.