Convertible letter/flat mail sorting case

A convertible letter/flat mail sorting case comprising, in combination, a rectangular box-like case member, open at the front, said box-like case member having a top wall, a bottom wall, sidewalls and a back panel, a plurality of flat letter separators hingingly connected in spaced, parallel relation agoainst and along the inside of said top wall and normally depending vertically downwardly therefrom to define a plurality of compartments, open at the front of said box-like case member for the selective reception of letter mail during the sorting thereof, means for simultaneously swinging said letter separator members between said downwardly-depending positions and upwardly retracted, withdrawn positions against the top wall of said rectangular box-like case member, a "flats" separator member hingingly connected to said bottom wall intermediate the length of said bottom wall and moveable, selectively, between substantially horizontal abutting position against the top surface of said bottom wall and perpendicular position between said top and bottom walls for dividing the front opening of said box-like member into compartments, open to the front of said box-like case member, for the selective reception of "flats" mail to be sorted when said letter mail sorting separators are in their upwardly retracted, withdrawn positions.