Necro bump warning... (last post was nearly a year and a half ago)
In my 3k hours in the game, I have never seen it as a drop, nor anyone wearing it.
Reading back through this thread from its beginning, one person talked about doing many difficult things in game to get it. It would be awesome for those people that have done all 5365 of them. Note that I say this as a person that hasn't, nor ever will get it. I am over 4k, but almost all remaining ones are PvP and/or DZ related so not even going to try for those.