select distinct substring(name,1,1) from stamps ,color_master where color_master.color_code=stamps.color_code and color_master.color='Gravure Maltese Blue' and year(stamps.issue_date)=1969 and stamps.serial_no='0599' order by substring(name,1,1)
IndianPost
Color >> Gravure Maltese Blue >> Issue Date >> year >> 1969 >> Serial Number >> 0599 >> Alpha >> O >>