Abstract: A safe for mounting on a shelf with a drop-down door that provides a work surface to sort a safe's contents. The drop-down door is congruent with a floor panel of the safe, forming a continuous working area. Within the drop-down door, there is a concealed document pocket. The drop-down door is substantially flush with a pair of side walls and a ceiling wall when closed. A spring plunger pushes the door open when the lock is disengaged. The safe has a back-lit shelf within an interior chamber. The safe is secured to the shelf by a bottom lock assembly with rotatable mounting plate concealed by the floor panel of the safe. In one example embodiment, the door is secured by a locking mechanism with a plurality of rotating pins.