The Papau New Guinea Spear

A while back I posted pictures of a very strange weapon. (First two pics). Seems that the mystery of this weapon has been solved. And a bit of a shame too because it looks like it has been cut down to size.

According to an article on the National Library of Australia website there were lots of spears used in Papau New Guinea. Often for bore hunting and more. And the article talks about how they used a three pronged spear for fishing. So.... it is highly probable that this is such a spear. Check out the amazing third picture.