select distinct substring(name,1,1) from stamps ,color_master where year(stamps.issue_date)=1970 and month(issue_date)=9 and color_master.color_code=stamps.color_code and color_master.color='Red purple and Dark Brown' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1970 >> month >> September >> Color >> Red purple and Dark Brown >> Alpha >> I >>