I just picked up this nice partial offset printing error. The crease is really annoying but it is still a nice note. The offset is nice and dark. Probably first or second offset to be printed.
Bet that note was almost impossible to pass as clerks would have thought it was fake, so the person simply folded it in half and carried it around.
Either that or whoever had it knew something wasn’t quite right and folded it into his wallet to keep it safe for later investigation.