The first and fourth pics show it best and does look like some kind of a lamination error. This is not damage from the die, it is actual damage to the planchet of the coin itself.
Laminations are fairly common, but that's a fairly nice sized one. You aren't rich yet, keep looking, but those are worth a little bit as a genuine error.
Laminations are fairly common, but that's a fairly nice sized one. You aren't rich yet, keep looking, but those are worth a little bit as a genuine error.


















