It's hard to say without a weight and without a picture. Try to return with both.
If it's perfectly centered and the design elements are complete and uniformly fuzzy, then it's an "acid job" and not a mint error.
Yes, these are classic examples of struck-in rim burrs.
It could be struck on a planchet punched out of rolled-thick stock. You must weigh it to see. I don't see much evidence of finning of the rim,...
I agree with those who say it's a struck-in piece of metal ("retained strike-thru"). As to value, I'd say at least $75 and perhaps as much as...
It looks like die deterioration doubling to me. "Abrasion doubling" is largely a myth. The vast majority of claimed examples of abrasion...
Sounds like you have an "acid job". A coin will end up being thinner and smaller than normal if immersed in certain acids or other corrosive...
Definitely damaged outside the mint. You see the same effect on "encased cents" (lucky token cents). The rim is pushed in and lateral to it...
I'm not sure. A capped die strike is a well-known error with a simple etiology that should have been accurately described.
If it slams into a magnet, then it's either pure nickel or steel composition. Copper-plated steel wasn't used in cents until 2000, although some...
This is a "capped die strike". The obverse die face was covered by a thin layer of metal derived from a coin that stuck to the die face and was...
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