select distinct substring(name,1,1) from stamps ,printsize_master where year(stamps.issue_date)=1966 and month(issue_date)=8 and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='3.70 x 2.0' and stamps.serial_no='0535' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1966 >> month >> August >> Print Size >> 3.70 x 2.0 >> Serial Number >> 0535 >> Alpha >> H >>