New York, 22 April 1960 - Institutional correspondence A letter from Jan-Albert Goris to Nelson Rockefeller, dated 22 April 1960
New York, 25 April 1960 - Institutional correspondence Jan-Albert Goris's letter to Nelson Rockefeller, dated 25 April 1960
ca. 1960–1964 - Newspapers Press cutting with a photograph of the replica Guernica tapestry and Nelson Rockefeller, along with a brief text on his collection