Keith Haring (1958-1990) (after) "Scientific American Untitled,1986 Black marker and coloured markers on an old sheet of newspaper. The coloured drawing bears a signature at bottom right, on the side and two stamps in red ink "Estate K.H", one at top left, the other at bottom right on the back of the drawing. The drawing also bears on the back a label "Tony Shafrazi Gallery" with annotations of description. Dimensions: 37 x 27 cm. Keith Haring (1958-1990) (after) "Scientific American", Untitled,1986 Black marker and colored markers on an old sheet of newspaper. The coloured drawing bears a signature at bottom right and a date (85), on the side, as well as two stamps in red ink "Estate K.H", one at top left, the other at bottom right on the back of the drawing. The drawing also bears a "Tony Shafrazi Gallery" label with descriptive annotations on the back. Dimensions : 14.5 x 10.5 inches