Unknown short sword. Where's it from? Philippines? Naga?

[David]

Great research from Maurice and Ian. Thanks for bring this information to light.
So my understanding is that the Tenggerese are a Javanese sub-ethnic group that traces its history back to the Mojopahit. They apparently are one of the few groups that still adhere to Hindu/Buddhist ways in Jawa.
https://en.wikipedia.org/wiki/Tenggerese_people