16 Paper, cardboard and goods made from these materials, not included in other classes, namely, printed publications, instructional and advisory material, namely, books, booklets, magazines, brochures, leaflets, pamphlets, newsletters, manuals, guides, periodicals and prospectuses in the field of business services; stationery products, namely, envelopes, folders, writing pads, paperweights, pencils, pens, rubber erasers, writing paper, paper bags; engraving and printing blocks; letterhead writing paper, business cards, business forms; promotional materials, business and financial forms, namely, bank checks, business forms and brochures and printed instructional materials in the field of business services