For homogenous plating, x-ray spectrum analyzers can determine plating thickness. I suppose once you find a heavy cent, the analytics would be...
It's a fair and proper question. I've weighed a bunch of 1982 Zincoln's early on when I was completing my variety set and never saw an...
Perhaps a chip (surface). Part of a deteriorating die. Some md to go with that ddd.
Debris or maybe rust.
Hi amnight - have a look at this - Push Doubling (error-ref.com)
An optical delusion. Tricky it was. Solved it is? Consensus everyone?
Excellent point!
I agree. But that's what's got me thinking it's an impression on the plastic (coin rotated a bit).
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