Thanks for your reply. It comes from an auction in Germany and was contemporary mounted on a 19th century furniture decoration (s. image).  
Sadly I have no idea on the sort of wood.  
Indeed, the Sinhalese depictions has some analogy. But there is many points I find strange on this depiction:  
 
The position of the nose and the something below (red arrows) 
The strange stylised cheek-bones 
The decorations on the neck of the creature 
The hole in the "nose" 
 
I did some scratchy research but couldīt find equivalends asian carvings. 
 
Kind regards 
Andreas
		 
		
		
		
			
		
		
		
		
		
		
		
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