RSword and Kubur, 
 
Thanks, for your great additional info. I think this as convincing as any argument made so far about these knives. 
 
Kubur, I don't agree with dismissing any evidence or observations based on one article, though hugely convincing. A case is best made through a compendium of evidence and observations, rather than limiting them. 
 
Thanks again for your additional info!
		 
		
		
		
		
		
		
		
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