Cheetah, that Barber's use was reground from a wedge long ago. It lost most of the notch in the process.
I have one which started out much the same. I shortened past the remnants of the notch, relieved the stabilizers, and got a smile back in.
I shortened the scales at the pivot end as well. It made me one of my favorite shavers!
Even if it is only an 8/8 :rofl2: