This one is a bit of a mystery too. Looks Celebes in style but haven't seen reference to this type of blade with bonded script from that area before.
All the one timber with some simple ornamental carving on hilt butt and sheath. No metal sheath/hilt furniture. Just some fairly utilitarian bands that have been hot closed and burnt in around the sheath. Quite high carbon, hand forged steel.
Again - all thoughts welcome.
Paul