Agreed with rahman, the rust is obviously very bad.
Although the piece is esoterically imbued, maintenance is still required.
In Malaysia, (KL), Rasdan should be able to do a good job treating pusakas.
Picture of the entire blade with the ganja should be helpful to find out something about this piece. Picture is too blur to tell much...
. Sorry.
It looks like the top is a naga and the bottom is a singa barong...(from the blurr pic.)