select distinct substring(name,1,1) from stamps ,color_master where year(stamps.issue_date)=1982 and month(issue_date)=10 and color_master.color_code=stamps.color_code and color_master.color='Olive Green' order by substring(name,1,1)
IndianPost
Issue Date >> year >> 1982 >> month >> October >> Color >> Olive Green >> Alpha >> P >>