Tape cassette container

A plastic container of such dimensions as to receive a tape cassette having a pair of reel openings, said container having in its closed configuration an upper face, a two segment lower face, and two pairs of parallel side walls which faces and walls thereby define a rectangular parallelpipedal shape, one side wall of a first pair of side walls being integral with both the upper face and a first segment of said lower face so as to define a lid, the remaining single side wall of said first pair of walls being integral with the second segment of said lower face and with the second pair of side walls so as to define a body, said lid being pivotably mounted for opening between said second pair of side walls, detent means operable to favor retention of said container in its closed configuration, a pair of internal pylons disposed on the inner surface of said second segment of said bottom face for engagement of the reel openings of a tape cassette, and complementary interlocking means operable to interlock the lid-defining upper face of one container to the second segment of the bottom face of a second like container, said interlocking means being disposed in matching relationship on (a) said lid-defining upper face and (b) on said second segment of said bottom face in alignment with said pylons.