You'rs so right, Congre; this one is a puzzler, at least to me. The sword itself looks European/Eurocolonial to such extent, and the sheath not, that I wonder if the sheath is a replacement made for it at a later date (?), perhaps for a nonEuropean owner, or just in a nonEuropean country by local craftsmen.
A randomish addition to the discussion is that some European mountan-hiking canes/staves have a small spear tip similar to this or to that on a kayan. I once had a Swiss one that was missing a screw-on sheath for more civilized circumstances, and thought it would be just as dandy as a sword cane; a spear cane.....
Ha ha "Congre"; now you're almlost an eel; I just cannot spell your name lately; first conagra (r. tm) then this.......
