select distinct paper from paper_master,color_master,printsize_master,stamps where stamps.paper_code=paper_master.paper_code and paper_master.paper<>' ' and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize=\'3.56 x 2.5\' and color_master.color_code=stamps.color_code and color_master.color=\'Dark Blue\' order by paper