While most photographs in the records are filed with the corresponding material, this small group of photographs was kept separate. The series consists mostly of large matted photographs, often in multiple copies, but also includes smaller prints and some negatives. The series includes photographs of Butler, Erich von Prittwitz und Gaffron, the Hôtel du Centre, and various group shots (some posed) taken at Dunford House, the League of Nations, the Geneva Institute for International Relations, and the Second Vienna Summer School.
