Some people say that this has been the very last Guarneri violin ever made. Indeed, you can see that the old Guaneri had evident problems with his sight and faced problems when building this violin. Nevertheless, it all fits in perfect harmony together and you can see that even with all the inaccuracies the mastery of the Great Master can be perceived since he knew his craft.
I had the chance to see the original Ole Bull in Taiwan and I was impressed of its appearance.
Sound wise the roughest Guarneri or the maximum of Guarneri sound.