Photo (Lichtenstein at the Smithsonian Institution's Archives of American Art): Archival material courtesy the Roy Lichtenstein Foundation Archives. Photo: Laurie Lambrecht; Photo (Getty Conservation Institute Outdoor Sculpture Research Initiative): RLCR 3288. Photo: The J. Paul Getty Museum, 2005.111. Gift of Fran and Ray Stark; Artwork © Estate of Roy Lichtenstein; Photo (National Gallery of Art Material Collection): Photo: Unknown photographer; Courtesy RLF Archives; Photo (Whitney Museum of American Art): RLCR 4575. Artwork © Estate of Roy Lichtenstein; Photo (Nasher Museum of Art at Duke University): RLCR 558. Artwork © Estate of Roy Lichtenstein; Photo (Albertina, Vienna, Austria): RLCR 4220. Artwork © Estate of Roy Lichtenstein.