It's may has been once a nice sword but the time has left a relict only. Here three better examples:
http://www.vikingsword.com/vb/showth...ghlight=pedang
I don't see any chance to restore it, the formerly nice handle is eaten away from time and animals and the blade is badly pitted.
I wouldn't spend any time with it, sorry!
This pedang could be from Lombok as well, I am unsure.
Regards,
Detlef