User blog comment:Sosuke Aizen008/Can Yhwach use Yamamoto's bankai(Zanka no tachi) again?/@comment-6657474-20131001211041

Speaking of Driscoll, what happened to his medallion? Was it destroyed with his body? That would seem to be the case, since one would think that if it hadn't, Hisagi would have noticed it on the ground after Yamamoto left and would likely have had the presence of mind to pick it up and turn it over to the SRDI for their analysis after the battle.