© The Irving Penn Foundation
Rock Groups San Francisco by Irving Penn, platinum-palladium print, 1967 (printed 1974). National Portrait Gallery, Smithsonian Institution; gift of Irving Penn © The Irving Penn Foundation
Rock Groups San Francisco por Irving Penn, impresión en platino-paladio, 1967 (impreso en 1974). National Portrait Gallery, Smithsonian Institution; donación de Irving Penn © The Irving Penn Foundation.
