Well, if no one has seen one like this, let me ask these questions.  
Does the inlay work seem Filipino, from a style perspective?  
If so, from where in the Philippines? While it matches the profile rather closely of an antique moro kris (even being shorter in length than a lot of modern training equipment) but the inlay doesn't seem very Moro to my (largely untrained) eyes. 
 
Am I right in thinking that the mother of pearl indicates WWII or later?  
 
Thanks, 
Leif
		 
		
		
		
		
		
		
		
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