1984D penny mint mark error?

I am new to coin collecting and not sure if I found an error.

 

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Ok. Next time please post full Pictures along with cropped sections . The Members tend to like that . You don't want to upset them. I already did . LOL
From what I see, you have a RPM or Re-punched Mintmark .
What's that coming out of his nose ?

 

Looks like the start of zinc corrosion to me. The copper plating often splits at the mint mark exposing the zinc.

 

The mint mark has a plating issue.
This will occur


Here is some information on your post strike damage
http://www.error-ref.com/zinc-deterioration-on-lincoln-cents/

 

Major Zinc Hole !! LOL

 

Plating blister as already said. Plating blisters have ruined many a good RPM on these zLincolns.

 

Thank you for your help and I think it was a hair coming from the nose.

 

Thank you for your reply and the info

 

Nice plating blister. There is another linear plating blister from Lincoln's mouth to I don't know where as you didn't give us photos of the entire coin.