We can't find any source for this item (quests reward, drop, etc). It's highly probable this item is not obtainable right now. It seems that the New Bonerot is obtainable.
Will not drop at 590+
@CutioPie nice, got it 3 times at ~500, love to see the confirmation on the drops, guess I jsut got unlucky and ill have to farm it a bit more.
6 minute respawn inside zone. Stand outside the zone and it's 2 minute respawn :-)
Got it today at 595 GS
Got this today at GS505. What the heck? My VG expertise is 600 so why is the drop so low? Has this been nerfed?
I got it three times 590+