EDITION Russian patent published in 1994 - IPC

FIELD: edition production. SUBSTANCE: edition has book block 3 attached to cover or in binding and has hole 4 which passes through single cover and through book block 3. Axis of book block is perpendicular to planes of covers. Rotating disk 5 is fixed inside edition. The disk has information elements 6 disposed along the circle of the disk; the elements are made of transparent glass. Axis 7 of disk 5 is shifter relatively hole 4 in such a manner, that information elements 6 when rotating are placed in opposite to hole 4. One cover is provided with lens 8 fixed inside hole of the cover. Slot 9 is made at edge part of edition to provided convenience of rotation of disk 5. Edition may have additional holes and additional disks. EFFECT: improved efficiency. 2 cl, 1 dwg