select distinct substring(name,1,1) from stamps ,color_master where year(stamps.issue_date)=1971 and month(issue_date)=4 and color_master.color_code=stamps.color_code and color_master.color='Brilliant Orange and Raw sienna' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1971 >> month >> April >> Color >> Brilliant Orange and Raw sienna >> Alpha >> S >>