Robert Smithson. Robert Smithson letter to Nancy Holt, 1961 July 29. Robert Smithson and Nancy Holt papers, 1905-1987. Archives of American Art, Smithsonian Institution.
Diana Woelffer. Jules Langsner and June Harwood Langsner in Italy, 1965. Jules Langsner papers, circa 1910s-1998. Archives of American Art, Smithsonian Institution.
Oscar Savio. Interior of the Palazetto dello Sport, Rome, 1957. Esther McCoy papers, circa 1876-1990. Archives of American Art, Smithsonian Institution.
Gorham P. Stevens and students measuring the entasis of the columns inside the Pantheon in Rome, 1917 March. American Academy in Rome records, 1855-2012. Archives of American Art, Smithsonian Institution.
Unidentified man erecting ladders to measure architectural components of the San Marco Basilica in Rome, 1917 March. American Academy in Rome records, 1855-2012. Archives of American Art, Smithsonian Institution.
Unidentified man erecting ladders to measure and inspect architectural components of the San Marco Basilica in Rome, 1917 March. American Academy in Rome records, 1855-2012. Archives of American Art, Smithsonian Institution.
American Academy in Rome students measuring the facade of the San Marco Basilica in Rome, 1917 March. American Academy in Rome records, 1855-2012. Archives of American Art, Smithsonian Institution.
Perspective Drawing of Olgiata Parish Church in Rome, Italy, circa 1969. Marcel Breuer papers, 1920-1986. Archives of American Art, Smithsonian Institution.
Russell Lynes. Gregorio Prestopino on the Piazza Navona in Rome, 1969 Feb.. Russell Lynes papers, 1930-1986. Archives of American Art, Smithsonian Institution.