Hi  
Just an observation. 
In your last picture there seems to be a hole in the centre with spiral rings around the hole, like you get when wood is being turned on a lathe. 
Are these spirals growth rings of the plant or made by a cutting implement 
Did native Americans use lathes? 
Regards 
Ken
		 
		
		
		
		
		
		
		
		
			
				  
				
					
						Last edited by Kmaddock; 13th December 2017 at 02:05 PM.
					
					
				
			
		
		
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