16 Paper and cardboard, namely, semi-processed paper and cardboard, paper and cardboard for stationery use, paper and cardboard for printing use, and unprocessed paper, namely, unsensitized photo paper; printed matter, namely, magazines and newsletters in the field of music; bookbinding material; photographs; stationery; posters, photo albums, almanacs, aquarelles, print engravings, graphic prints, atlases, notepads, newspapers, lithographs, books in the field of music, paper bags for packaging, bookends, bookmarkers, drawing pads, pamphlets in the field of music, blotters, note books, calendars, catalogs in the field of music, index books, bookbindings, checkbook holders, storage cases for stationery, wrapping paper, envelopes, writing pads, writing ink, desk stands for holding ink, charcoal pencils, pencils, pencil holders, pencil leads, pens; balls for ball-point pens, namely, pen tips; pen nibs, penholders, drawing pens, pen cases, stands for pens and pencils; glue for stationery or household purposes; artists' materials, namely, pens and pencils; paintbrushes; typewriters; office requisites, namely, staplers; printed instructional and teaching material in the field of music; printing type; printing blocks