Rasdan -- I think the sampir on this keris is more Minang than Sulawesi. I suspect this keris is a composite keris with handle, blade and sheath from different sources. For Minang kerises, I've never seen blades such as this. The pendoko form is rather unfamiliar, but I think it could actually be straits Bugis form. 
 
Straits Bugis kerises attached
		 
		
		
		
			
		
		
		
		
		
		
		
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