Method and apparatus of recording and displaying data

Claim 1

A COLLAPSIBLE DATA DISPLAY DEVICE COMPRISING: FOUR SIMILAR TRAPEZOIDAL SIDE WALLS HINGEDLY INTERCONNECTED AT THEIR ADJACENT EDGES TO FORM A DEVICE OF FRUSTO-PYRAMIDAL SHAPE, SAID SIDE WALLS HAVING MEANS ADAPTED TO SECURE A DATA SHEET THERETO, A RECTANGULAR TOP WALL FOR THE DEVICE HINGEDLY CONNECTED ALONG ONLY TWO OF ITS OPPOSED EDGES TO THE TOP EDGE OF TWO OPPOSED SIDE WALLS, A RECTANGULAR BOTTOM WALL SIMILARLY ATTACHED TO THE BOTTOM EDGE OF SAID TWO OPPOSED SIDE WALLS, SAID OTHER TWO OPPOSED SIDE WALLS HAVING MEDIAL FOLD LINES EXTENDING FROM TOP TO BOTTOM THEREOF AND LYING IN A GIVEN PLANE, SAID TOP AND BOTTOM WALLS ALSO HAVING FOLD LINES LYING IN SAID PLANE, AND SAID TOP AND BOTTOM WALLS EACH HAVING OPPOSED NOTCHES EXTENDING INWARDLY TOWARD THEIR RESPECTIVE HINGE LINES, SAID NOTCHES BEING BISECTED BY SAID PLANE, SAID SIDE WALLS HAVING THE MEDIAL FOLD LINES THEREIN AND SAID TOP AND BOTTOM WALLS BEING ADAPTED TO BE COLLAPSED INWARDLY ALONG THE PERTAINING SAID MEDIAL FOLD LINES TO COLLAPSE SAID DEVICE WITH SAID SIDE WALLS HAVING THE MEDIAL FOLD LINES THEREIN BEING RECEIVED IN SAID NOTCH MEANS.