Interesting info regards the lock, I tried to remove mine to post a rear photo (and for my own interest), but one of the screws is stuck fast. so will put some oil on it and leave alone for a while. 
 
Its wire on mine, but very much in the style of string/cord. Very fine multi core wires. 
 
Have to confess I bought mine purely because of the crude lock and the sling, had no idea it was interesting to anyone beyond me. 
Mine has no inlay, and only a very small amount of decoration.
		 
		
		
		
		
		
		
		
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