Thanks guys. I greatly appreciate the feedback. Motan, thank you for pictures of your knives, some of which have similarly engraved blades. 
 
I'm not feeling quite so stupid now that I have seen what you all think! My initial guess was Ethiopia or Sudan based on what little I could find in my records and online. My friend will have to be satisfied with a general region rather than a more specific answer. As far as age, the knife has been cleaned recently and the blade polished, so I think it looks newer than it actually may be. That said, I don't think it is any earlier than WWII, and perhaps later. 
 
Very helpful comments. 
 
Ian.
		 
		
		
		
		
		
		
		
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