Roy Lichtenstein (American, Pop Art, 1923-1997): Grrrrrrrrrrr!!, 1965. Oil and Magna on canvas, 68 x 56-1/8 inches (172.7 x 142.5 cm). The Solomon R. Guggenheim Museum, New York, NY, USA. © This artwork may be protected by copyright. It is posted on the site in accordance with fair use principles.