Is This a Badik/Badek??

[CharlesS]

I picked up this nice, but unusual, Indonesian dagger last week. My first thought was that it was a badek/badik from Sumatra, but it has just enough unusual features that technically it may not be that at all, so I would love any feedback or opinions. It is the hilt style and curvature that is especially intriguing, and makes me lean away from this being a true badik.

The hilt is ivory with a swasa ferrule. The blade is pamor steel. The scabbard is gilted brass over wood. The blade is 10in., and the piece is 15in. overall.

Thanks in advance for any feedback.