16 Printed matter, in particular photo albums, event albums, books, calendars, cards, business cards, greeting cards, letterheads, newspapers, manuals, brochures, printed publications in the nature of magazines and pamphlets, periodicals, and pictures, all in the field of the marine environment; drawing pads, note books, booklets in the fields of the marine environment, marine research, marine conservation, and marine education, photographs, book markers; writing instruments, in particular pencils, propelling pencils, pastel crayons, penholders, nibs, drawing pens, fountain pens and pens; rubber erasers, drawing rulers; posters, pencil cases, pen cases