Fascinating pieces! 
 
 What age where they sold as? 
 
The antler is from Barking deer or Muntjak, I have several Nepalese Karda & a Nepalese shepherds knife using such antlers for hilts, It is also used on small knife hilts in Burma, Thailand & no doubt  probably Vietnam & Cambodia as well. { All in the Natural range of the Deer.} 
 
Spiral
		 
		
		
		
		
		
		
		
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