Montecarlo, 24 August 1979 - Institutional correspondence Letter from Douglas Cooper to Evelio Verdera
Paris, 2 November 1979 - Personal correspondence A copy of a letter Claude Picasso wrote to William Rubin, director of Painting and Sculpture at MoMA
New York, 22 February 1979 - Institutional correspondence Michael Blackwood's letter to Louise Kreisberg
Siracusa, New York, 15 July 1979 - Institutional correspondence Ellen Oppler's letter to Luisa Kreisberg
