Swan, Based on the edge of the coin in your link above, it looks genuine.
....as opposed to a coin that's been 'played' with, which will have the darker color ON the reeded edge. Closing the office now, will see you all...
worn/overused dies Seems to be very common on the newer Dimes and Quarters mostly......
Although most of the 'full' dark planchets are uniform as to the darker color on both sides, there are some that show a normal surface on parts of...
I could immediately tell it was a genuine mis-annealed planchet because: Every single 'mis-annealed' coin that someone has shown me at a coin...
No, getting colder. I'll post the answer in about 5 minutes, if that's OK Fred
It's scratched - just follow that 'line' to the left of the his profile, in the larger photo.
Close, but the copper core is there anyway; it's not bleeding thru any clad layer.
It's a genuine mis-annealed or improper annealed planchet. There's one easy way I could tell it's genuine - can anyone guess how?
It's missing the denticles on the right side, so it's off center, not an uncentered broad strike.
Please don't send it out for grading. It's not worth the submission/postage fees, imo. (although the 'effect' shouldn't 'affect' the grade)
Not PMD - Just strong from worn or overused dies. A fairly common effect
Given the overall look of the coin, on both sides, it's difficult to tell if it's wear/damage, or a filled die. I'm leaning towards damage,as...
Except that clad layers can literally be 'removed' if there is a split in the edge of the cladding.That's very different than having the outer...
As mentioned, your coin is a normal circulation strike, not a proof.
Sorry to disagree, but the outer layer was not 'removed'. Both layers, on both sides, were eaten away by acid. Maybe that's a distinction...
Acid Treated (Chemically Treated)
An interesting conversation piece, as I like to say, but as mentioned, it's a common minor filled die error.
Nice example, nice grade. It looks like a 20% Brockage to me. (you know those PCGS error guys - they can't tell percentages apparently!)
Mike Diamond has named this 'split-line' plating. As PM98 said above, depending on various factors, sometimes the copper-plating (very thin)...
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