Interesting Bugis blade .

[Alam Shah]

I agree with Dave, the blade is a Malay piece. The sheath is typical Terengganu. The hilt or hulu (in Malay) is pipit teleng form. The silver pendongkok looks new, to me. The hulu and cross-piece or sampir (in Malay) are made from ketengga wood and the batang of angsana wood (Pterocarpus indicus).

I have a similar looking sheath. See here.

There is another piece here with a similar blade form. (err..i think it's your blade Dave).

And another blade here. Just for comparison.