select distinct substring(name,1,1) from stamps ,color_master where color_master.color_code=stamps.color_code and color_master.color='Turquoise Blue' and stamps.serial_no='0591' and year(stamps.issue_date)=1969 order by substring(name,1,1)
IndianPost
Color >> Turquoise Blue >> Serial Number >> 0591 >> Issue Date >> year >> 1969 >> Alpha >> A >>