I was also one of the lower bidders on this (it went for a LOT more than I thought it would. Am I missing something? Anyway probably not the best place here to inquire about prices but it shocked me how much it ended up going for). 
 
 
I love older Sulu blades likt this. Said before that these types are my favourite kris, but I also concur with everyone else. The handle seems much much later, as does the asang-asang, which looks slightly off-place compared to where the original would have been. 
 
Other than that I see no unusual or unique qualities to it. I think, like most of you, it most definitely could be a twistcore. Again, lovely piece.
		 
		
		
		
		
		
		
		
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