TRUSTY is the world record holder of making Largest & Smallest Lock in the world.  
 
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Mortise Lock
 
Mortise Lock Mortise Lock Mortise Lock Mortise Lock
Mortise Lock Mortise Lock Mortise Lock Mortise Lock
Mortise Lock Mortise Lock Mortise Lock Mortise Lock
Mortise Lock Mortise Lock Mortise Lock Mortise Lock