select issue_date from stamps,color_master,printsize_master where stamps.issue_date!=''  and color_master.color_code=stamps.color_code and color_master.color='Yellow, Red, Blue and Black'  and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize='3.75 X 1.9'   and issue_date!='' order by issue_date