Seller claims to be knowledgeable but has labeled this as a die break. I instantly thought PMD but upon enlarging the photo, I now am not sure. Also, how much does lamination errors affect the price? These are sellers photos taken in 2 x 2
Lamination crack. It looks to go into the edge so it might even be a planchet crack - defective planchet
The 1918 's platchets were famous for lamination issues! I have an 18 D somewhere around here also lamination error.