Enclosure having a lid pivotable to a selfsustaining open position

An enclosure, comprising:

• a box section having a bottom wall, front wall, rear wall and opposing side walls and adapted to contain articles therewithin;
• and
• a lid pivotally movable from an open position to a closed position spanning the top of said box section and engaging top edges of said front and rear and opposing side walls of said box section,
• a rear edge surface of said lid in said closed position includes extending rearwardly therefrom at least one tab section having a substantially flat vertical free edge surface extending between first and second corners, said tab section having a length such that upon pivoting of said lid to a position intermediate said closed position and at least a first fully open position, said first corner of said free edge surface compressively engages an outer surface of said rear wall of said box section requiring increased force to be applied to further pivot said lid until said free edge surface abuts said rear wall defining said first fully open position, whereby when said enclosure is mounted to a vertical surface and said lid is pivoted upwardly to said first fully open position, said first corner will bear compressively against said outer surface of said rear wall of said box section to retain said lid in said first fully open position until sufficient force is applied to pivot said lid to its closed position.