Mexico City, 26 September 1968 - Institutional correspondence A letter from Rachmael ben Avram to Nelson Rockefeller
Mexico City, 26 September 1968 - Institutional correspondence Rachmael ben Avram's letter to Carol K. Uht
1969 - Internal institutional documents A loan form for the replica Guernica tapestry at the Hudson River Museum
9 November 1952 - Newspapers Excellent Paintings Displayed in exhibition of Harrison-Berne; Museum Showing Picasso Prints