When I originally posted this I asked John Powell for his thoughts about it, and he replied as follows:
	Quote:
	
	
		| I never did get to the bottom of this, but Artzi and I had many discussions about these side knives. While they appear with or connected to some Omani pieces there are many with Indian/Nepali markings. Trade items? Who knows, but I would disregard Egerton and stick with the mid-east for origin. | 
	
  Stuart's illustration from Elgood is convincing as far as I am concerned also.