16 PRINTED MATTER AND PRINTED PUBLICATIONS, NAMELY BOOKS, BOOKLETS, PERIODICALS, MAGAZINES, NEWSPAPERS, CATALOGUES, BROCHURES AND LEAFLETS IN THE FIELD OF HISTORY, CRYPTOGRAPHY, LANGUAGES, SCIENCE, MATHEMATICS, COMPUTERS, COMMUNICATION TECHNOLOGY AND TECHNOLOGY INNOVATION; PRINTED INSTRUCTION AND TEACHING MATERIALS IN THE FIELD OF HISTORY, CRYPTOGRAPHY, LANGUAGES, SCIENCE, MATHEMATICS, COMPUTERS, COMMUNICATION TECHNOLOGY AND TECHNOLOGY INNOVATION; CALENDARS; GREETING CARDS; POSTCARDS; POSTERS; MOUNTED AND UNMOUNTED PHOTOGRAPHS; PLAYING CARDS; STICKERS; STATIONERY