Includes catalog of collection, letter, maps, and forms. Concerns the Smithsonian's Ancient Technology Program.

The papers of painter, printmaker, and sculptor Peter Krasnow (1886-1979) and his wife, writer Rose Krasnow (1885-1984), measures 6.9 linear feet and date from 1914 to 1984. Papers include biographical materials, a sound recording, correspondence, essays, poetry, short stories, notes, transcripts of lectures and radio talks, five diaries of Peter Krasnow, personal business records, exhibition catalogs and announcements, clippings, magazines, five sketchbooks, sketches and drawings in multiple media, prints, and photographs.

Photographs made during the Smithsonian-New South Wales Expedition to Pakistan, possibly by the expedition's collectors or official photographers. The photographs document Pakistani people, homes, industries, and arts, including manufacturing and handicraft processes and products such as textiles, pottery, jewelry, and metalwork.

The collection documents the development and evolution of the Breck Girl, a highly successful and long-lived advertising campaign whose hallmark was its vision of idealized American womanhood through correspondence, photographs, paintings, and print advertisements.

The papers of photographer, filmmaker, and painter Rudy Burckhardt measure 5.6 linear feet and date from 1934 to 2015. A bulk of the collection consists of black and white negatives which document over 260 mid-to-late twentieth century modern artists, their work, studios, and/or exhibitions. Notable artists include Willem de Kooning, Dan Flavin, Joseph Cornell, Helen Frankenthaler, Donald Judd, Franz Kline, Roy Lichtenstein, Louise Nevelson, Isamu Noguchi, Frank Stella, and many others. Burckhardt was hired to photograph for a number of New York art galleries such as the Leo Castelli Gallery and Green Gallery; art collectors including Chaim Gross and David Rockefeller; and art magazines such as ARTnews. Personal papers include announcements and an exhibition catalog; clippings; photographs on postcards; and a book, entitled Conversations with Rudy Burckhardt About Everything, by Simon Pettet, 1987. A small but rich addition to the collection dates from 1941-2015 and contains a curriculum vitae; letters from Joe Brainard, Harold Schimmel, and others; writings; one scrapbook dating from World War II containing letters Burckhardt wrote to Edwin Denby; printed announcements and clippings; and one photograph of Burckhardt taken by Yvonne Jacquette.

The Walter Rosenblum Collection is comprised of 7,396 silver gelatin negatives taken by noted photographer Walter Rosenblum (1919-2006) for New York art galleries, collectors and artists between 1945 and 1976. The collection reflects the art of his time and is particularly strong in American and European avant-garde, surreal and abstract works.

The Leo Castelli Gallery records measure 215.9 linear feet and 0.001 GB and date from circa 1880-2000, with the bulk of the materials dating from the gallery's founding in 1957 through Leo Castelli's death in 1999. The major influence of dealer Leo Castelli and his gallery on the development of mid-to-late twentieth century modern art in America is well-documented through business and scattered personal correspondence, administrative files, exhibition files, extensive artists' files and printed materials, posters, awards and recognitions, photographs, and sound and video recordings. Also included are records for the subsidiary firms of Castelli Graphics and Castelli/Sonnabend Tapes and Films.

Recordings of meetings, lectures, symposia, and other events sponsored by or documenting organizational activities of the Archives of American ArtAAA) events .

The Biographical Information File contains biographies of individuals associated with the Smithsonian as either administrative officers, curators, collectors, donors, regents, or research associates. Occasionally biographies of individuals less closely associated with the Institution are included.

The records of Safko International, Inc., document an assistive computer technology company created by Lon S. Safko to produce and sell the environmental control systems he invented for the physically disabled, specifically quadriplegics. Through the use of a computer and alternative input devices, the physically disabled were able to overcome physical barriers which inhibited them from attaining an autonomous lifestyle.