Is this an error on my 2001 penny?

Log in or Sign up to hide this ad.

Not to most. Plating blister. Should be hollow. Look here.. Plating Blisters

 

There's no need to create 2 threads. We can see the first one.

 

Its not a die chip.

 

I have one with at least 20 of those bumps like that. Not an error