Cretan knife with East Asian scabbard?

[motan]

Dear members,
I just bought this small Cretan knife/dagger and it came with a worked wood scabbard. I already suspected that the scabbard may not be original. I asked Oriental Arms and he affirmed my suspition. My question is wether this style of scabbard look familiar to anyone?
I have never seen a similar scabbard, but I little about East Asian weapons, where worked wood scabbards are common (in contrast to Middle Eastern weapons). Could it be Philipine or Indonesian?
I will have better pictures when I get the dagger