Letter from René Magritte to Gasparo del Corso, 6 November 1952.
Letter from René Magritte to Gasparo del Corso, 11 December 1952.
D. Sylvester (ed.), René Magritte, Catalogue raisonné, vol. IV, Gouaches, Temperas, Watercolours and Papiers Collés 1918-1967, London, 1994, no. 1347 (illustrated p. 151).
Rome, Galleria dell'Obelisco, Magritte, January - February 1953, no. 13.