Cal-Royal NM Series, Extra Heavy Duty Mortise Locks, Grade 1 - SECTIONAL TRIM CLOSET / STOREROOM Function F65, Left-Hand (CS-TS) Finish:Satin Stainless Steel - US32D 2 x Nylon Head Cut

2 x Nylon Head Cut Keys (matching to the card)

Can be rekeyed (by a locksmith) to match door locks

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So I'm guessing you're wondering how they did it

Cal-Royal NM Series, Extra Heavy Duty Mortise Locks, Grade 1 - SECTIONAL TRIM CLOSET / STOREROOM Function F65, Left-Hand (CS-TS) Finish:Satin Stainless Steel - US32D 2 x Nylon Head CutCloset Storeroom Function: Latch bolt retracted by knob or lever from either side. Deadbolt extended or retracted by key outside. Any door in commercial or institutional buildings where the best auxiliary Mortise deadbolt locks are required Backset: 2 ( 70 mm ) Door Range: 1 ( 44 mm ), available to 2 (57 mm ). Specify thickness if other than 1 Deadbolt: 1 ( 25 mm ) throw, stainless steel, can withstand cutting or sawing Cylinder: 1 Mortise cylinder