Abstract: A compact device for locking an article, such as an office machine, to a desk or fixed base comprises a flexible cable secured at one end to a key-operated lock, and at the other end to an anchor block. The anchor block is in turn secured to the desk with a one-way screw. The lock is engageable with a plate member permanently secured to the bottom of the machine. The plate member is step-shaped adjacent the machine so that the lock engaging portion of the member is maintained parallel to and above the surface of the desk. This prevents interference between the bottom of the lock and the desk, and expedites engagement of disengagement of the lock. The cable retains the office machine in proximity to the desk, yet permits the position of the machine to be adjusted to suit the user.