Wolf School Master Armor as a quest reward (The Witcher 3: Wild Hunt)

The master armor of the Wolf School can be obtained as a reward in Kaer Morhen for this in the main building in the staircase room (the staircase leads to the tower with a megascope) behind the kitchen you can find the book "Monster or Witchers description" the armor of the Wolf School.

PS
is this one such quest or are there more such ???