This is a Terengganu keris. Malay in origin, but definitely with a lot of Bugis influence. If I remember correctly, I read that historically, the Terengganu Malays had a lot of dealings (and thus cultural exchange) with the Bugis from the Johore and Riau areas.
This is not a 'tourist keris'. Nice sheath with typical Terengganu-style 'clipped' tips. Good kemuing wood. Looks like it fits well, but normally, the ganja of the blade should stick out a bit. For this specimen, I see that it sinks in a little. The hulu is the typical 'ayam teleng' form (crudely translated to "twisted neck chicken"), which is an archetypal terengganu form. The pendoko (hilt cup) is a bit rough, but that's the most easily rectifiable part.