I assume you have checked to make sure its a copper and not a zincoln? copper=lamination, zincoln=bad plating job?
Yes, it's copper. I've never seen one quite like this either Dick. That's why I posted it here, I'm not positive but lamination/planchet issue seem the most probable.
If I did not know better, I would have thought that it stuck to the die and literally was pulled apart, but I do not see how that could happen.