Found an unopened proof set from 2000, and I've found 4 pretty exciting coins. The dollar is misaligned and has a step protruding into the face from the edge, and on the other side I thing there is minor double stamping:
[u] That is called a fin on the rim area. The die may have been tilted a bit and part of the metal moved around the die on that area of the rim creating the fin. Nice find. Most of the time they are already flattened.
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