16 PAPER, CARDBOARD, ARTICLES OF PAPER OR OF CARDBOARD (NOT INCLUDED IN OTHER CLASSES); PRINTED MATTER, NEWSPAPERS AND PERIODICALS, BOOKS; BOOK-BINDING MATERIAL; PHOTOGRAPHS; STATIONERY; ADHESIVE MATERIALS (STATIONERY); TYPEWRITERS AND OFFICE REQUISITIES (OTHER THAN FURNITURE); INSTRUCTION AND TEACHING MATERIAL (OTHER THAN APPARATUS); PRINERS' TYPE AND CLICHES (STEREOTYPE).