Information and advertising medium for storage of information has casing consisting of four covers where first two covers are connected by back joint

摘要

Information and advertising medium has casing consisting of four covers (1.1,1.2,1.3,1.4) where first two covers are connected by first back joint (2.1). Third cover is connected with first cover by second back joint (2.2). Fourth cover by third back joint (2.3) is connected with second cover, whereby third and fourth covers are not connected directly with one another. The first two covers have a folding sheet (3.1,3.2) on their inside.