Latch assembly and concealed opening

A locking container comprising:

• three generally upright walls forming a portion of a parallelogram each said wall having an innersurface and an outersurface;
• each innersurface having a slot therein with each slot contiguous with a slot of an adjoining wall;
• a fourth generally upright wall closing said parallelogram and terminating below said slots;
• a top closure slidably received within said slots of said three upright walls, said top closure having an outer uppersurface and a lower innersurface;
• a spring latch on said lower innersurface of said top closure said spring latch extending toward the upright wall opposite said fourth wall with a downward incline, said spring latch terminating in a vertical section having a reverse bend therein to form a sliding surface;
• an angular catch on said wall opposite said fourth wall having a downwardly inclined surface for receipt of said sliding surface and a bend therein to form an upwardly inclined surface inclined upwardly toward said wall opposite said fourth wall;
• whereby upon sliding said top closure through said slots towards said wall opposite said fourth wall said sliding surface of said spring latch engages said downwardly inclined surface of said angular catch and slides therein until intersecting said upwardly inclined surface where said vertical section of said spring latch mates with said downwardly inclined surface and upwardly inclined surface to retain said top closure against further movement.