Interesting Moro Kris/Kalis, the gangya* looks like it may not be a separate piece as is more normal in pre-ww2 (1930's and earlier) items. I can see what may be just a well fitted gap line tho.
Dimensions, blade length, length overall would help too. (I can't quite read the tape measure)
* - see
https://en.wikipedia.org/wiki/Kalis#...menclature.jpg
and
https://en.wikipedia.org/wiki/Kalis