2006 is or is not?

[lincent]

I look for the exact error as in the classic examples, but I think there may be some not so classic. Today I want to leave my doubts with this specimen to expose.

[jallengomez]

There's no error. It's environmentally damaged. Just a stain from something.

[willbrooks]

You need to be more specific about what you are asking. Are you asking about the faint doubling under the earlobe or the discoloration or what?

[jallengomez]

I guess I should have looked closer at the coin. Yes, please point out to us exactly what it is you are asking about.

[lincent]

You are right. I mean doubling faint under the earlobe. Thank you.

[jallengomez]

The doubling still looks like part of the stain to me, but is it raised?

[lincent]

Yes, it is little bit raised

[willbrooks]

Even though the "doubling" looks to be in the shape of the earlobe, I would lean toward that being coincidental and it is most likely just more corrosion. It would probably need to be examined in-hand to be 100% certain, but if it smells like a pig, it usually is.

edit: And the more I look at your photo, the more I am certain it is part of the corrosion.