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.