select distinct substring(name,1,1) from stamps ,color_master,np_master where np_master.np_code=stamps.np_code and np_master.np='P' and color_master.color_code=stamps.color_code and color_master.color='Red Purple and Buff' and year(stamps.issue_date)=1966 order by substring(name,1,1)
StampsIndia
Currency >> P >> Color >> Red Purple and Buff >> Issue Date >> year >> 1966 >> Alpha >> G >>