Thankyou your comments have been very helpful! Every one seems to be leaning laminated , which is good right? I think its very interesting
This appears to be a struck through error ratherthan a lamination error. It looks like it is struck through either a piece of cloth or maybe tape. The upper edge is just too straight for a lamination error in my opinion.
I agree with the struck through. I don't think it's a lamination. See how the rim is slightly deformed? Definitely struck through.
I'm unable determine if it has indeed a mint error or a man made one. Would u agree its a mint error?