This is my criteria. It may not be a standard numismatic definition, and others may not agree, but it makes sense to me It's an incomplete...
What characteristics do you see that makes you think it's questionable? Do you think it's been gassed? An accelerated method? Chemicals/dips? Do...
Most of us collect "dreck" and "widgets". She's made it clear on other sites what she thinks of those coins. It wouldn't surprise me if the...
@Ragu Go buy a copy of A Guide Book of United States Coins, also called the redbook. Its a yearly pricing guide but is also filled with a...
Entry post I'm leaning towards the 2reals, but the Roman provincials may key fun to work on my attribution skills
Contact mark from a coin with a reeded edge. PMD
Your coin has environmental damage. The copper plating is only 8 microns (0.0003 inches) thick. Once the surface is breached the underlying zinc...
That's where you're wrong. A ridge ring and die creep are caused by different mechanisms. READ THE POSTS! All of the info is right there....
Also a Minor collar clash. It could be folded over rim as @paddyman98 said, or possibly a small chip in the collar. Either way, it's nothing...
Do you even bother to look at the links people provide? Post #9 links to info explaining the differences Between die deterioration, DDD, and...
Sorry, but it's PMD. The gouges show displaced metal, which would not be on a die struck coin
Here is my explanation, which may or may not be accurate, but at least it seems plausible to me. DDD - the metal on the hardened die erodes...
Normal die deterioration IS NOT the same as design creep. Please take the time to read the links from error-ref in post #9. The ring around the...
Asking price means absolutly nothing. Anybody can ask for anything they want on ebay. What are the SOLD prices? Granted this is a much better...
Sorry, but it's not an error of any kind. It spent some time sitting in an acidic or alkali environment which caused the pitting you see. Could...
Sorry but the reverse was milled off. The obverse rims also suffered some abrasive damage. It's not an error.
Not a DDO, die deterioration doubling. It was struck from very worn dies. Note all the radial flow lines
We used to use Gold-Palladium sputtered coatings for ceramic SEM samples. I'm not certain, but I believe the thickness was a couple nanometers....
Theoretically, I'm sure it's possible, but I'd suspect it would take a relatively long period of time for the solid zinc to diffuse into the...
I'm thinking it's die subsidence associated with a cracked die. It would still show some detail in the sunken area....
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