Great start for coming out of lurking mode, George - welcome among the k(e)risofanatics!
That's a museum quality piece with apparently original fittings...
Following Cato this would be a Maranao piece, of course.
I really like these small kakatua pommels! I'm not sure if the topographical etch is really original but it's nice and I certainly wouldn't mess with it. Could you please post pics of the reverse side? I'm especially curious wether that arrow-like pattern design at the base of the blade is intentional (I'd guess so).
Regards,
Kai