16 Paper, cardboard and goods made from paper or cardboard, not included in other classes, namely, note paper, notebooks, flip-over pads in the nature of art pads, drawing pads, memo pads, scratch pads and writing pads, copy paper, magazine paper, newsprint paper, stationery writing paper and envelopes, advertising signs of paper or cardboard; printed matter, namely, printed instructional, educational and teaching materials in the field of tractors, informational letters concerning tractors, leaflets about tractors, pamphlets in the field of tractors; bookbinding material; photographs; stationery; adhesives for stationery or household purposes; artists' materials, namely, artists' canvas, pens and pencils, palettes for painting; paint brushes; typewriters and office requisites, namely, paper hole punches, staplers, franking machines and specifically not furniture; plastic materials for packaging not included in other classes, namely, bags, bubble packs, and plastic film not for commercial or industrial purposes; printers' type; printing blocks; magazines and periodicals about tractors; newspapers; books, namely, in the field of tractors; catalogues in the field of tractors; brochures about tractors; magazine supplements for newspapers in the field of tractors; newsletters in the field of tractors