New York, 6 May 1955 - Institutional correspondence A letter from W.R. Keating & Company International to R. Lerondelle
New York, 23 January 1957 - Transport documents A letter from the vice-president of W. R. Keating & Company to Willem Sandberg
Los Angeles, 3 March 2003 - Photograph A replica of Guernica with the UN logo projected at the intersection of Hollywood and Sunset Boulevard