Here's an alternative (long shot) theory -- could it be the short version of the sword that the Ilanun (Iranun) pirate is holding below?
Note that the guard of the Ilanun's kampilan is like that of a kris. Plus if he can rest his hand on the pommel like that, then it must not have been bifurcated.
In any case, thanks for the pic Maurice. Truly an intriguing piece
