To repeatedly give hidden hologram on a card board material which is used for accommodating various kinds of elements by a method being excellent in cost effect.

A card board base has an adhesive layer and a metallized holography image, the metallized holography image contains at least two holograms and one hologram can be seen only by incoherent light and another hologram can be seen only by coherent light. The holography image is formed on a photosensitive element on a high polymer base by an image forming step and the image forming step contains matallization of the holography image and overcoating of the holography image with the adhesive layer. Then the metallized holography image is transferred onto the card board by laminating the adhesive layer on the card board at prescribed temperature and pressure, then laminating and stripping the high polymer base from the card board to leave the holography image on the high polymer base in order to be reused.