A bit late with this post. Sorry, just noticed the thread. 
 
According to my understanding this is not pamor tangkis. 
 
Pamor tangkis is a different pamor on each blade face. 
 
This keris has a small seemingly accidental patch of pamor on one blade face only, the other blade face has no pamor. 
 
This cannot be classified as pamor tangkis.
		 
		
		
		
		
		
		
		
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