Abstract: A holding device is provided for removably securing a multitude of flat plastic cases in an orderly, easily viewable array. The device employs a substantially rigid panel having a number of series of uniformly spaced apertures, and suction cups held by said apertures. The apertures are disposed such that two suction cups are positioned to engage each plastic case.

Abstract: A storage device and system are provided for retaining a number of collector's coins that are encased in plastic cases. The coins are retained in an orderly array and are readily reviewable and removable. The device consists of a panel upon which a number of suction cups are mounted. An assembly consisting of the device holding a number of encased coins can be stored in stack-wise manner with other assemblies in a manner whereby the cases of one assembly are in protective abutment with the rear extremities of the suction cups of the next forward assembly.