Just got this today I'm guessing it's badger as it is really soft in feeling there were a couple higher priced boar brushes, but they didn't seem as nice. Have no idea what it is
Well there are 4 bands in the hair of the brush. Black tips, white band, black band, white band at the base. Most brushes come only in 2 or 3 band. In fact, every brush I've seen except this that is badger hair comes in 2 or 3 band (There are the pure black Plissons though).
I almost wanna say that someone dipped those tips in ink...hmm...