select serial_no from stamps,printsize_master,np_master where stamps.serial_no!=''  and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='3.70 X 2.4'  and np_master.np_code=stamps.np_code and np_master.np='R'  and year(stamps.issue_date)=1981  and year(stamps.issue_date)=Currency   order by serial_no