select distinct substring(name,1,1) from stamps ,color_master where color_master.color_code=stamps.color_code and color_master.color='Golden Yellow and Oriental Blue' and stamps.serial_no='0660' and year(stamps.issue_date)=1972 order by substring(name,1,1)
IndianPost
Color >> Golden Yellow and Oriental Blue >> Serial Number >> 0660 >> Issue Date >> year >> 1972 >> Alpha >> S >>