THE ACCOMPANYING DRAWING IS LINED TO INDICATE THE COLORS RED AND GREEN. THOSE SQUARES IN THE DRAWING LINED TO INDICATE BLACK ARE ACTUALLY A SCREEN PRINTING OF GREEN OVER RED BUT GIVE THE APPEARANCE OF BLACK. THE SUPERIMPOSED DIAGONAL LINES BISECTING THE GREEN AND SCREEN PRINTED SQUARES ARE YELLOW IN COLOR. THE SUPERIMPOSED DIAGONAL LINES BISECTING THE RED AND SCREEN PRINTED SQUARES ARE GREEN IN COLOR.