Wondering About This Chinese Lamination Error

No problem lamination-wise with this one. All quite legit and genuine.
Has exposed a nice ghost image underneath!

This example valued in at least the tens of dollars range.
Would have been valued at a lot more if it has been a U.S. error of this magnitude.

Some grease must have been rolled into the strip before the blank was punched out. More than very probable that the lamination separated after it was issued into circulation.

VF.

I don't have a lot of experience with large laminations, but my first impression was that the boundary looks unusually straight for such a large one. And the exposed area looks a lot like file or machine marks, though I suppose that andy actual machining have erased the effects of the strike that are showing through (hand filing less so).

I can also imagine that if it is indeed a large lamination, those marks just indicate the direction that the metal was rolled, and the nature of the defect in the metal gave rise to those striations.

But, as I said when I started, I'm not an error specialist, so take it with a grain of salt.