?** How to distinguish whether it is AN ERROR SHEET ( Scott # 1203 ) or the one that was issued later ( # 1204 ) ? I am interested but never could fathom the difference. The 5 stamps that i have stump me although Kenmore insist that THE SET of 2 they sent is # 1203 & # 1204 : i fail to see "WHAT" was "inverted" ? Can any expert ( in philately ) member please enlighten me ?