Signed postcard of his work "Andy Mouse IV, Hommage to Warhol" from the American graffiti artist and social activist known for his instantly recognizable visual language of dancing figures and his work to bridge the gap between high and low art. Haring has signed in bold black marker below the image, ca. 1987. In very fine condition. 4 x 6 inches (10.5 x 15 cm).