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='Blue Grey and Monastral Blue' order by substring(name,1,1)
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Currency >> P >> Print >> Color >> Blue Grey and Monastral Blue >> Alpha >>