From preliminary patchnote:

Clan mark logs obtained from hunts can be exchanged with Bertana in Idyllshire (X:5 Y:5) for the following items:
Illuminati Gobtwine / Carboncoat / Wyvern Horn

(the logs can be bought with 500 3.0 seals).

Was it really necessary? I always considered giving such items as a reward for The Hunt was a huge mistake. Why gain?