Mistura is Portuguese for mixture, and refers to a mix of badger and boar. Semogue makes some.
That's what the 'badger and bristle' on your brush is saying. The knots are meant to take advantage of the benefits of each type of hair.
In Italian (on my Omega 11047 for example) they label it as tasso (badger) & setola (boar bristle).View attachment 1210099
Thanks so much for the explanations and excellent education. I actually have a few mistura brushes in my collection/rotation. I have an Italian Omega 11047 “Mixed Midget” boar & badger hair brush, a Spanish Vie-Long 04102 horse & boar hair brush, a Spanish Vie-Long 14832 horse (35% mane hair; 65% tail hair) & badger hair brush, and a Japanese Chikuhodo mixed badger & mongoose hair brush.
Tim