On the die, part of the D of WISDOM chipped off, leaving the incuse letter incomplete on the coin.
Fred is correct. The letter fadeout is due to intentional die abrasion.
It's not a Malaysian 1 sen planchet, as those are composed of copper-plated steel. The OP's coin is composed of copper-plated zinc. It's also...
The cent is an early-stage brockage with a partial collar error.
As several others have said, this quarter was sanded down outside the Mint. You can even see the copper core beginning to be exposed around the...
Crushed outside the mint with an overlapping cent.
It's also a perfect illustration of why the ostensibly synonymous term "major die break" is ridiculous.
These do look more like solid corrosion domes (zinc rot) rather than hollow plating blisters.
Someone took an unstruck 5c planchet and squeezed two buffalo nickels into the available surfaces. In other words, a vise job.
Although this die void is tiny, it does qualify as a cud.
It does appear to be a concave chain strike, with the vertical ridges generated by a previously struck coin.
Inverted die setups were re-introduced in 1992, in the Denver Mint.
Not spooned, but rolled and squeezed in the horizontal plane by a hand-cranked or motor-driven mechanical device.
It doesn't satisfy any existing definition of "shattered die". There is only one crack/split. As to value, I've seen dimes struck by this...
Heavy die wear on the reverse that might be obscuring/distorting a light die clash.
The reverse shows a late die state. The obverse was mechanically altered outside the mint, probably by a buffing wheel.
It's an asymmetrical split die straddled by a retained interior die break and some die chips.
It's a "forced" broadstrike with a full, nearly-centered, first-strike brockage.
The answer is "one". A die variety is defined by its etiology (manner of formation), not its abundance.
As Paddyman98 correctly concluded, this dime was struck by heavily worn dies. There are no other contributing factors.
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