Have not found that listing but still looking. The sharpened blunt end might suggest a few uses--gouging or digging, for example.

Thanks.

The best guess so far has been an asparagus cutter, they tend to be long & only sharpened at the end but don't have a hatchet/ cleaver, it was suggested this might have been to cut the ends off bundled bunches. But that's purely a guess with no other example.

Local implement, it comes in various size. From to harvest pumpkin to pruning. In Sundanese it is called as gaet (with e like in "set"), surprisingly in Kanekes (or in modern day called as Baduy) it is the kujang. In some parts of Java, such is in my hometown (Yogyakarta) friends called it kudi.
It is not an old wesi aji but it has age. Handle made of albino buffalo, at the moment the handle has higher price than to the blade.