GB512386A - Improvements in calendars - Google Patents

Abstract

512,386. Calendars; indexing. LEHMANN, H. Dec. 13, 1938, No. 36368. [Class 106 (iv)] [Also in Group XV] A perpetual calendar comprises a set of at least four cards bearing monthly calendars, three of the cards each having two protruding tabs showing data enabling any card to be selected when required for display at the front of the set, all the cards being symmetrical about a central vertical axis. Seven monthly calendars, each having the first Sunday on a different date, are printed one on each face of four cards, the eighth face carrying instructions. One card g has a central tab only, the others c, d, e have the tabs arranged symmetrically about a central vertical axis. The number on a left-hand tab shows the date of the first Sunday in the calendar on the front of the card and the number on a right-hand tab shows the date of the first Sunday in the calendar on the back of the card. The month names are printed on a card o seen through slots m in the calendar cards. A card index with lettered tabs k arranged in accordance with the invention may be provided in the same case h. The tabs may be blank and the letters or numbers corresponding thereto may be marked adjacent each tab on a fixed background such as the back of the container.