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I bought a collection from a fellow today and he had many buffalo nicks. Found one, 1925, that seems to have obverse and reverse turned about 15% front to back as it is turned over. Is this a common error? Any insights? Thanks.

it's called a rotated die and they are an error and collectable. Not sure of value but the further they are off the better.

Thanks bman. I thought it was a pretty neat find for me.