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					Originally Posted by stenoyab
					
				 
				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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 Hi Jeff.
Yes, keep adding the penetrating oil every week and trying again. It would be great to see the inside of the lock. It may be a locally made copy (?) But from the outside, I think it may be a genuine Portuguese made lock, that was decorated locally.  The inside of the lock will be the clue.  Of course, the lock could have been used at a latter date.  But is the lock is European made, it would still place your gun in an early period. Possibly pre-1800.
Rick.