Heavily worn die.
It's actually MORE important to keep your fingers off copper coins, as copper is far more reactive than silver or gold.
It's already down to bare metal in many places. At this point you don't have to worry about saving original surfaces, so you might as well brush...
Some collectors care a lot about provenance, but others not so much. That said, one day counterfeiters will be able to make fakes that cannot be...
All of which is true, but the conversation was about why professional graders (including him) are inconsistent, and that was a slightly abridged...
A very well-known and honest professional grader told me this happens with him.
I wouldn't use olive oil, as it is acidic, and anything acidic will corrode copper (as will vinegar for the same reason). If you're trying to...
As a retired college professor in the hard sciences, I can tell you that exams often have questions that do not have a single correct answer. Even...
XF but with possible corrosion on both sides. Definitely not UNC.
Xylene and acetone will only mess up the color of a coin that's been messed with. I agree with Insider that this coin is corroded and needs more...
The real problems come when they try to grade coins struck on a screw press from handmade dies.
In case it needs to be said again to anyone on this forum, coin quality is continuous and grades are, by definition, discontinuous. They are slots...
I agree that it doesn't look like a reed hit. But it's not like any lamination I've ever seen.
Slabs are not air-tight. Of course coins tone in slabs. That's why the TPGs no longer guarantee the color of copper coins.
Real coin. Artificial toning.
I seriously doubt that it came from the US Mint this way.
A dealer friend of mine: I asked him how many of the dealers here are honest on the bourse floor at a Baltimore show many years ago. He looked...
It looks like it's already had corrosion removed before. I doubt that if you treat it kindly, you could damage it further.
Cleaned and poorly recolored. Commercial VF20. Net Fine due to the bad recoloring.
I agree.
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