1Russwin Mortise Lock RWN-902March 19, 2024/in Interior Door Mortise Lock Hardware, Russwin Hardware/by adminIn nice working condition this Small interior door mortice lock by Russwin . Brass faced mortice has a very slight taper to the face plate and made that way. Back set is 2-1/2″ and the face plate is 7/8″ x 3-7/16″.