NOS, made before Kaba merged with Ilco. Comes with over ride core installed and includes a user key and control key.Some scratches on one side of main unit. Backset is 2 3/4 This is reversible for right or left hand. A lock with the key over ride is a must when there in only one entrance/exit. Most are not and it. The item "Brass Kaba Simplex Old Style 1021 Pushbutton Lock OverRide Core Included withKeys" is in sale since Thursday, April 18, 2019. This item is in the category "Business & Industrial\Building Materials & Supplies\Doors & Fixtures\Locks & Locksets". The seller is "bake98" and is located in Oxford, Pennsylvania. This item can be shipped to United States.