To enhance design performance in appearance, to improve slidability on a surface, to enhance portability, and to obtain cushion performance, so that impact resistance is improved by constituting a rectangular paper box housing cover of a paper base material and a resin layer, and constituting the surface of the cover of a resin forming layer formed by causing foaming on the resin layer.

The rectangular paper box housing cover is constituted by thermally sticking the back surface plate on a sticking plate and a sticking plate through an adhesive layer, and the outer periphery of a camera main body is surrounded by the rectangular paper box housing cover. As to a base material forming a blank plate constituting this rectangular paper box housing cover; a paper base material 51 is used as a main material, and the resin layer 53 is provided on the entire surface including a desired printing pattern 52 on one surface of the material 51. A laminated material C is manufactured by providing a resin layer 54 constituted of resin whose softening point is higher than that of the resin constituting the layer 53 on the other surface of the material 51. Next, a paper member D obtained by heating and processing the material C, and causing foaming on the resin layer on an outer surface side constituting the material C, so that the resin foaming layer 55 is formed as shown by an arrow P is used.