I'm wondering if the kris in question
is a transitional piece. The luk on it are sharp, yes, but not as sharp and pointed as those I have seen on post-1930s krises which have very sharp points (like the one on my head

).
Regarding the separable ganga issue, I haven't seen much evidence yet to alter Cato's thesis other than there may be exeptions to the rule in non-separable kris before 1900. Certainly the craftmanship used on earlier kris is unnecessary for later kris post-1930 when guns were even more plentiful than before. It would certainly cost more money to create a separable ganga especially when the demand for kris as an everyday weapon drops in later years.