Hello David,
I agree nearly with everything Kai has stated.
![Smile](images/smilies/smile.gif)
It's a pedang most probably from Lombok. The fittings are like Kai stated from mamas but I guess that the handle fittings are all from mamas and from the same age since the engraved flowers are very similar.
![Wink](images/smilies/wink.gif)
The blade isn't overcleaned IMVHO but can need further polish before you try an etch. When you don't want to use a chemical etch try to etch it with instant coffee, with a little luck it will work. It's a very nice blade!
Attached are my own pedang collection from Lombok, only the second one from up is a pedang from Sumatra. The two in down and the third from up have as well fittings from mamas, the others have silver fittings at the handles.
Regards,
Detlef