Archaic proto-, boy's- or miniature souvenir-kris?

[VVV]

I have just finished etching this strange kris.
It looks very old and a nice twist core showed up along the blade.
But there is not a separate ganja and its size is inbetween a Javanese and a Balinese keris.
This is the smallest Moro kris I have seen (so far).
It's 52 cm (20 1/2") in scabbard and the blade is 39,5 cm (15 1/2").

What do you think it is?

Michael