Interesting. Maybe some kind of planchet defect? Lamination issue on the clad. You can see the copper core underneath.
Thanks, I'm not sure of anything, as you know and I appreciate your input. Has anyone seen anything like this
I am wondering if it is slag or some kind of corrosion. I see the reddish in color edges. I am not sure what has happened with this one.
More photos. Field behind LIBERTY has a seemingly frosted, raised appearance. Is there a name for this and is it legitimate mint error?