Illustration to 'Suprematic tale about two squares' , by el lissitzky , 1920 , illustration , Suprematism style , from the series Suprematic tale about two squares
A white envelope with a red square in a circle on it.
A white piece of paper has a circle on it. Inside the circle is a square with a red square inside it. The circle is outlined in black. The words "YHOBNC" are written below the circle.