1955 - Insurance documents The insurance contract and list of prices for the works insured and sent to the Musée des Arts Décoratifs, Paris
London, 18 April 1980 - Institutional correspondence Nicholas Serota's letter to Roland Penrose, dated 18 April 1980
London, 1 May 1980 - Institutional correspondence Nicholas Serota's letter to Roland Penrose, dated 1 May 1980