Die Crack or Lamination Error ?

As you can see in the photos this is 1994-D Lincoln Penny.
What type error or damage would this be classified as ?

 

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It almost looks like some acetone will remove your error... is it glue?

 

I agree Abe, that looks like glue or varnish.

 

It is concave NOT convex

I was thinking to myself ... these guys must really be blind ... then I looked at my 1st set of photos and thought WOW it could look like glue on the penny. So I tried taking new photos to illustrate that the problem area is concave not convex. So after you adjust your perspectives to realize it is a portion of the coin missing and not something on the surface of the coin , please tell me what would cause this.


Oh and Yes I did change my avatar to the Un Peseta coin because it is the prettiest coin I have ever owned over my long 2 months of coin collecting.

 

If it's incuse then it must be a struck through of unknown origin.

 

click on the pictures 3 to 4 times to enlarge

click on the pictures 3 to 4 times to enlarge to full resolution.

 

Wow, thats different. How thick is that coin?

 

Sorry for the long delay in responding.

It is normal in it's thickness when laid next to other pennies.