select distinct substring(name,1,1) from stamps ,color_master where color_master.color_code=stamps.color_code and color_master.color='Grey' and stamps.serial_no='1387' and year(stamps.issue_date)=1989 order by substring(name,1,1)
IndianPost
Color >> Grey >> Serial Number >> 1387 >> Issue Date >> year >> 1989 >> Alpha >> N >>