artist opens at the Ferus Gallery, Los Angeles, California, marking the West Coast debut of pop art and featuring his Campbell's Soup Cans. July 23 – The Mohamed Mahmoud Khalil Museum is opened in Cairo. July 25 – The Queen's Gallery is opened to the public at Buckingham Palace, London. August – The comic book character Spider-Man, created visually by Steve Ditko, is introduced. September 25 – The Pasadena Art Museum mounts New Painting of Common Objects, a survey of contemporary American Pop Art. October 23 – "Fifty California Artists" exhibition at Whitney Museum of American Art, New York, NY. 1962-1963. Catalogue published. Organized by San Francisco Museum of Art with assistance of Los Angeles County Museum of Art. Circulated to Walker Art Center, Minneapolis, MN; Albright-Knox Art Gallery, Buffalo, NY; Des Moines Art Center, IA. Notable artists in exhibition include Elmer Bischoff, Bruce Conner, Roy De Forest, Richard Diebenkorn, George Herms, John Paul Jones, Edward Kienholz, Frank Lobdell, Nathan Oliveira, Ed Moses, Lorser Feitelson, Helen Lundeberg and Peter Voulkos. October 31 – The Sidney Janis Gallery mounts International Exhibition of the New Realists, a survey of contemporary American Pop Art and the European Nouveau Réalisme movement and the first Pop Art group exhibition in an 'uptown gallery' in New York City, a rented storefront at 19 W. 57th Street, near the main gallery at 15 E. 57th Street. Robert Motherwell, Mark Rothko, Philip Guston and Adolph Gottlieb quit the Janis Gallery as a protest against the exhibition. November 14 – The British General Post Office issues the first commemorative stamps to be designed by David Gentleman. December 14 – Leonardo da Vinci's early 16th-century painting the Mona Lisa is assessed for insurance purposes at US$100 million before touring the United States for several months, the highest insurance value for a painting in history. However, the Louvre, its owner, chooses to spend the money that would have been spent on the insurance premium on security instead. Michelangelo Pistoletto begins painting on mirrors. Ernst Barlach House completed as an art museum in Hamburg, Germany. City Hall Museum and Art Gallery established in Hong Kong. The Institute of American Indian Arts is set up in Santa Fe, New Mexico. Musashino Art University. National Art Museum of China opens in Beijing. Museo de Arte Español Enrique Larreta inaugurated in Buenos Aires, Argentina. The comic book character Barbarella, created by Jean-Claude Forest, is introduced