TN. I've read your posts and believe your trying to learn. However, this is an obvious PMD. I think you're getting a little flak because some...
I belong to some other forums as well. Trust me, if you start to question responses to coins with obvious damage, you'll realize that CT really...
Wouldn't you feel more comfortable measuring a few copper cents instead of relying on a theoretical calculation? Would you feel comfortable...
@James Miller Can you explain how you did your density calculations?
Looks like split plating around the mm which led to zinc rot underneath. Split plating around the mm was common in 80s zincolns. It's not a RPM
What did you see on doubleddie.com or varietyvista.com. That should be the first place you check when you think you have a RPM
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