As Battara mentioned, he and I had a chance to discuss this beautiful sword before he took the plunge and purchased it for a substantial amount.
Like Dan W., I felt it was probably a piece from a Sultan's collection. The only similar kampilan I have seen is in the the Philippines National Museum (a picture apears in Cato of that particular sword), and Battara's kampilan is no less impressive than the national treasure in Manila that came from the Lake Lanao region of Mindanao (a Maranao area).
It was my strong suggestion to Battara that he do whatever it took to acquire this sword, as he would likely never have another opportunity to own such a magnificant piece. Perhaps my pleading had nothing to do with the outcome, but I am delighted that he went ahead and secured it. IMO this is a 19th C. kampilan that was refitted with a new handle and ornaments in the mid-20th C.
This would have made a magnificent "bearing sword" carried by a member of the Sultan's/Datu's court during official events. A symbol of great wealth and prestige. I hope that one day Battara will discover its distinguished former owner.
Congrats again, my friend, on a wonderful buy.
Ian.