I have a sorta similar Sensenich 2 blader mounted in my den. It had been used for years on a training aircraft operating off a gravel strip, so the engineers CONSTANTLY had to keep dressing back the tips and edges to bring some uniformity to the prop.
I flew the a/c it was attached to a few times, and a degree of vibration in excess of other aircraft in the fleet was noticeable, although that type of a/c vibrated a damned lot anyway!
The prop was finished off one day when a student pilot (a lady of german origin) took it up with an instructor for X-wind circuits. They managed on landing to actually dig the prop in (without any other damage except to the engine). Some weeks later, I saw it in the corner of the engineer's hangar, and after a little talking, it now hangs in my house - kind of an interesting talking point!