It could very well be a strike-through error and the foreign object could have been a thin piece of plastic. However, it could also be an...
"Trails" are not any form of doubling. They are filaments or tendrils that extend from design elements. They seem to be generated during...
Hard to say. It might be due to improper polishing of the die face.
Yes, this is a well-known example of a reverse cud with associated obverse die damage. It's quite possible that a piece of the reverse die broke...
I never said this coin wasn't the same as the one in the Cherrypicker's Guide. Clearly, they do appear to have been struck by the same die. What...
It's pretty clear to me that this is a die chip that simply has a similar size and shape to a D-mintmark. Given how many die chips develop around...
I strongly doubt that your dime is 4 millimeters thicker than normal. It is perhaps slightly thicker as the result of a strike that was slightly...
Lamination errors are almost exclusively confined to solid-alloy coins. Clad coins develop separation errors. Because the gap in the clad layer...
The nickel on cent planchet is interesting from the standpoint of the numerous flecks of gray/silvery metal on both faces. Perhaps they're...
Since it's on the highest part of Lincoln's coat, and since it doesn't conform to the topography of the design, it's almost certainly a contact...
Blebs are common and carry no premium. Your dime is worth 10c. Sending it to a grading service would be throwing money away.
These appear to be "blebs" or "patches", both terms used to refer to pitting of the die that sometimes occurs in late die states. The cause of...
Intentional die abrasion can affect the entire die face or it can be quite localized. It all depends on what the technician is trying to...
It's most likely a missing clad error. It should weigh around 1.8 grams.
Every example of a "coreless" state quarter that I've been able to examine proved to be plated. I just sent one back to a disappointed collector...
If the wall and floor of the reverse face are featureless, then you're dealing with a uniface die cap. With respect to the slabbed Lincoln cent,...
If the slabbed coin has a clear brockage of the obverse design on the reverse face, then it's the product of a single strike. Although these are...
This is a "Texas cent". It's been enlarged, possibly by pounding a cent between two pieces of hard leather. For some reason, Texas cents seem to...
Machine doubling can afflict incuse design elements.
Your description and photos (poor as they are) present an appearance that is not consistent with any sort of mint error or die variety.
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