Abstract: The present invention relates to a holding assembly for holding sheets of material, as for example blueprints, in a vertical or hanging position and for providing an easy way to transport the sheet material when it is to be used. The assembly has a clip means normally open along its longitudinal extent. This clip opening can be enlarged by urging the walls of the clip outwardly. A retaining tube is provided which is open along its longitudinal extent and is adapted to receive the clip and engage the walls of the clip to both and to squeeze the walls of the clip against the sheet material. A mounting tube is provided which is also open along its longitudinal extent and is adapted to receive the clip and retaining tube. The mounting tube is mounted to a support rack so that the sheet material can hang vertically.