I have a few rigbuilders/carpenters/shingle/half hatchets that have the "nail pulling notch", but don't see how any of them can practically be used to pull a nail unless the nail was left unsunk, or a duplex nail. It would also stress the handle in exactly its weakest direction. Is there some forgotten use for the notch, or a special technique that has been forgotten. Are the notches there because "that's the way we've always done it", and maybe hatchet makers aren't hatchet users? Or is it like the karda on a kukri- a symbol whose meaning may be cloudy?