Where is this sheat from?

[Alam Shah]

Originally Posted by BluErf

Whoa, the sheath almost looks like some sort of axe. Sharp! This looks contemporary and could come from anywhere, though the intention seems to be Straits-style keris.

This piece, belongs to a friend up north.. I was told that the crosspiece is made from ivory and the piece is from Nias.. I doubt that it's from Nias.. there's a remote mixture of tajong and minang on the upper crosspiece curl.. I'm thinking that the ivory might be stained to look older..
I do have my doubts on the authenticity of this piece..