Salam Pak Ganja,
In Peninsula, if we try to define keris blades (old) based on geographical origin, we tend to split into 2 categories - keris Melayu and keris Jawa.
Having said that, keris Jawa is easier to categorize as it has pakems, tangguh and also a lot of reference to go back to. But then when it comes to keris Melayu (Bugis included), we wud be having big problems. No one can tell for sure whether its a Trengganu, or Perak or Kelantan/Pattani piece. No record whatsoever about empu that can be traced back, say to 200 years. Sulawesi is a different matter, because we somewhat can tell the wesi used, the garap style, blade profile and thru experience - tanting to check the bobot. That also no one can tell for sure..... If we use dress as an indicator, I think the chances of our tangguhan to be correct is almost .... well... none
