What you have is a combination of die scrapes and a (largely) field-restricted struck-through error. A gritty paste was stuck to a feeder (or...
If it's solid, then it would most likely be a die dent.
It appears to be an occluded gas bubble. The soft borders would be consistent with that diagnosis. It's definitely not a die break and the soft...
Setting aside the damage, this nickel appears to have been struck through a late-stage die cap. Either that, or the die was very worn. The image...
It's a form of pre-strike damage most closely related to a rim burr.
I've presented photos of these bullseye plating patterns in at least two of my Coin World columns.
Yes, collar clash.
I believe this is a genuine error. I have seen "bullseye" patterns of incomplete plating on other coins. In some, it seems to have been...
No, the split plating does not lift up. However, both phenomena are associated with the areas where tensile stresses tend to concentrate.
I must emphasize that nothing is lifting up the plating from the outside. It has simply lost its bond to the zinc core. It's possible that...
There is no such phenomenon as "pull away" and I have never used the term. Split plating doubling and plating disturbance doubling can be localized.
It has nothing to do with strike doubling (machine doubling). The increased tensile stresses located at the edge of the design causes the plating...
A related form of die wear occurs in copper-plated zinc cents, beginning in 1982. However, it tends to be more localized. In that case, it's...
This form of wear is common in recent dimes and America the Beautiful quarters. Here's a discussion from 2013:...
While die deterioration doubling is a possiblity, it's more likely a case of plating disturbance doubling.
Yes, the position of the collar break changes with respect to both faces.
This is definitely NOT a grease strike. It's an example of severe die wear (die deterioration).
A typical missing clad error involves a clad layer popping off after blanking and will weigh 4.67 grams (a clad layer weighs 1 gram). This coin...
It would be a "die error" according to the classification system I use. I don't know what caused the damage, but was something that "clawed" the...
Die damage.
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