I can't tell from the photos if there's a pressure ridge or displaced metal on the right side of the recess. If there is no pressure ridge or...
I am skeptical that this is a genuine ragged perforation ("blowhole"). On the reverse, the edges of the hole are too clean and the corners too...
In a broadstrike, all design elements are present on both faces. In order to diagnose an off-center strike, the design has to be cut off along...
Both off-center strikes and broadstrikes lack reeding. They are both struck "out-of-collar".
It's an off-center strike, not a broadstrike. The design is cut off at the edge on both faces.
A retained interior die break is essentially a circular bi-level die crack that isolates an island of metal on the die face.
There are several possible diagnoses: (1) a 90% "indent" (indentation from an unstruck planchet); (2) struck through a partial (off-center)...
The off-center strike on the Phillipines 50c coin looks like it was struck by two reverse dies, one with denticles and one without. In other...
This is not a partial collar error or any other kind of error. This is post-strike damage. By 2005, virtually all business strikes were struck...
Push doubling is a subtype of machine doubling. Slide doubling is another. The rarest is rim-restricted design duplication.
I don't know. The problem is that, unless a cent is struck out-of-collar, it's impossible to establish the proximate cause of the excess weight....
Since it's isolated in the field, it's unlikely to be a die chip. It could be a die dent or a "bleb" (die erosion pit).
This "rash" is most likely the result of die deterioration as I have seen other, similarly affected nickels.
As some others have said, the obverse of the nickel features a "stepped" or multi-level cud that possibly grew over time.
This cent was either stuck on a planchet derived from rolled-thick zinc stock or struck on a planchet that received an unusually thick coating of...
The puffy, indistinct letters and numbers are the result of die deterioration.
This is die scrape from a feeder/ejector. It's width, sharpness, direction, and the fact that it is restricted to the field proves this to be the...
Definitely a "squeeze job" (vise job, hammer job, garage job, smash job, etc.).
See the November 9, 2020 issue of Coin World for an alternative explanation.
Judging from the northerly position of Lincoln's ear on the brockaged face, this is a counterbrockage/clashed cap strike. The die cap, which was...
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