Moro armour has more carabao and brass plates.  This spearhead profile looks more for chainmaille than Moro armour.   
 
I think it is also too thin for the usual Moro spearhead.  And most Philippine spears have round tangs, nothing like this. 
 
Ian is right - I was also scratching my head.
		 
		
		
		
		
		
		
		
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