That's probably a bubble of gas trapped in the planchet.
Let's be more serious than that. The air has to come out of the ASE / AGE / moderns bag sooner or later, and when it does, what's left? The...
I think they needed a sacrificial lamb to blame for their declining revenues. In a nutshell, he had no more to do with it than the remaining...
I bought a couple of cleaned & retoned coppers that I still keep as reminders.
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