select distinct substring(name,1,1) from stamps ,color_master where year(stamps.issue_date)=1979 and month(issue_date)=2 and color_master.color_code=stamps.color_code and color_master.color='Blue Grey' order by substring(name,1,1)
StampsIndia
Issue Date >> year >> 1979 >> month >> February >> Color >> Blue Grey >> Alpha >> B >>