Paris, 1 October 1955 - Institutional correspondence J. Malesset's letter to the Musee des Arts Décoratifs
Paris, 17 October 1955 - Institutional correspondence J. Malesset's letter to the Musée des Arts Décoratifs
New York, 10 February 1956 - Institutional correspondence A letter from Louise A. Boyer to Petro (Nelly) Van Doesburg