select distinct substring(name,1,1) from stamps ,printsize_master,np_master where year(stamps.issue_date)=1957 and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='3.34 cms x' and np_master.np_code=stamps.np_code and np_master.np='P' and stamps.serial_no='0390' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1957 >> Print Size >> 3.34 cms x >> Currency >> P >> Serial Number >> 0390 >> Alpha >> E >>