Abstract: The disclosure relates to an apparatus for the safe-keeping of a sheet of film before, during and after its exposure in, for example, an X-ray camera, the apparatus being in the form of a box of great length and width and low height, the box having an openable and closable lid.The inventive concept forming the basis of the present invention is that of realizing an improvement to aid in, and more effective equipment for, the safekeeping of film sheets.Such a concept is achieved according to the present invention in that the apparatus disclosed by way of introduction is characterized in that the bottom and at least one side wall, which preferaby is a longitudinal side wall, are disposed in an integral unit, the longitudinal side wall consisting of a strip bent at a right angle to the bottom.