Abstract: A protective enclosure for displaying, protecting and storing flat items and most preferably to protect, store, and display flat collectible items such as comic books and other printed documents. The protective enclosure is formed of a upper face and lower face foldably connected by a living hinge. The lower face has a protective recess adapted to receive an item to be stored, wherein the upper face and lower face form an interlocking surface around the protective recess when the protective enclosure is in a closed position. A label area also is formed from a upper label area of the upper face and a lower label area of the lower face. The protective enclosure has an interlocking stacking interface adapted for removably receiving an interlocking stacking interface of a second protective enclosure.