Abstract: A front panel (12), a back panel (14) and a center panel (16) define a plurality of parallel slideways (30) between the panels (12, 14). Each of a plurality of users grasp a projecting tab portion (42) of a slide member (40) provided in each slideway (30) and pulls it outwardly until a chosen number from a strip of numbers on the slide member (40) is exposed on the slide member (40) immediately outwardly of the edge of the device. The user then tears off the projecting portion of the slide member (40). The slide member (40) carries an indicator at its opposite end which identifies the selected number on a corresponding strip of number provided inside of the device on a strip (32) of the center panel (16) which is adjacent to the slideway (30) in which such slide member (40) travels. After all of the slide members (40) have been manipulated in this manner, the device is given to a person who desires the information inside the device.