16 paper and cardboard articles; namely, booklets, journals, periodicals and books relating to the ecology and the protection of trees, reforestation and the environment; bookbindings, posters, and mounted photographs, stationery, pens, pencils, pencil sharpeners and nonelectric erasers, copy books and memo pads, card indexes, stationery and file folders, adhesive tapes and adhesive tape dispensers for household and stationery use, decals, artist's materials; namely, engravings and lithographs, playing cards, cartoon prints and stencils, EXCEPT FOR SUCH GOODS SOLD AND DISTRIBUTED IN CONNECTION WITH MORTGAGE OR REAL ESTATE SERVICES