Note: Avvar Twwill requires Jaws of Hakkon.
- Rewarded upon completing A Cultured Exchange war table operation with Josephine. (5)
- Can always be looted from an Avvar Camp chest during the side quest Jawbreaker. (8)
- Looted from a chest next to a Hakkon Weapon Veilfire schematic at the end of the second hallway on the right just inside the Old Temple in the Frostback Basin. (8)
- Looted from a chest next to another Hakkon Weapon Veilfire schematic in the room just prior to final standoff with Gurd Harofsen in the Old Temple in the Frostback Basin. (8)
- Looted from Revenant Gurd Harofsen in the Old Temple during the main quest Ameridan's End. (14-20)