A composite mystery to me.

[David]

Originally Posted by kai

The blade looks weird - maybe ceremonial/talismanic? Certainly closer to the sajen category than being a "real" keris IMVHO...

Well, IMVHO there is no maybe or might about it...the intention of this blade seem to be talismanic without much doubt in my mind. I wouldn't exactly call this a keris sajen, but it falls towards that category for sure. However, i have never considered sajen to not be "real" keris.
I suspect that the feature on the back edge of the blade might represent a head-dressed Garuda. I assume the metal attached there is gold.
I agree with Kai that it would be great to get a clearer look at the designs incised into the blade had his toothpaste idea sounds like a great way to do it. I'd be very interested to get a better look at that.