A tested good Ingersol Sargent and Greenleaf model 831B padlock w/ 3 identical working keys.
It had a new lock cylinder installed.
The 9th through 14th photos, shows that the lock can be disassembled, if the 'square headed' key is used. 
The keys are retaining in the unlock position.
High security.
The lock weighs 3lb., 13 oz. 

Combined shipping

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