Hello Jose, 
 
my best guess that it is a Sumatra (Riau?) Bugis keris. I also think that the handle show Sumatra influence (Minang, Riau?). Sheath form isn't pure Sulawesi form. Pendok is maybe a more recent addition. Gilded "pendoks" could be simple a sign of wealth but it could be that it was added by a selling purpose.  
Still a nice keris. 
 
Regards, 
 
Detlef
		 
		
		
		
		
		
		
		
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