You just did not zoom them enough. Look at their tops: they are flat.  
Hemispherical as they can be , all showing darkened innards with protruding balusters, all just like the one with a white arrow. 
Again, thanks for providing incontrovertible iconographic evidence in my favor.
		 
		
		
		
			
		
		
		
		
		
		
		
		
			
				  
				
					
						Last edited by ariel; 29th December 2019 at 08:30 PM.
					
					
				
			
		
		
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