BTW, I could never fully understand why Aydha Katti carries “ Arab influence”. That is repeatedly mentioned in various sources  ( Elgood included) but no specific feature is convincingly mentioned. 
Deccani Sailaba is in fact a Sousson Patta. And ( I climb on a very thin phonetic limb)  the real Afghani name for Khyber knife is “ selavah”. Are we talking about an imperfect homonym or was there a real connection between these two short, single edged  chopping weapons?  Did the Afghanis adopt it but simplified its construction? After all they have acquired all of their bladed weapons ( and their names, to boot) either from India or from Persia and the sophistication of their bladesmithing  was grossly inferior to both. They were utilitarians, not inventors and not decorators.
		 
		
		
		
		
		
		
		
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