Letter from Magritte to Mirabelle Dors and Maurice Rapin, 9 November 1956.
Letter from Magritte to Alexandre Iolas, 14 December 1956.
Letter from Magritte to Alexandre Iolas, 29 January 1957.
H. Torczyner, Magritte - Ideas and Images, New York, 1977, no. 217 (illustrated p. 261).
D. Sylvester (ed.), René Magritte, Catalogue raisonné, vol. IV, Gouaches, Temperas, Watercolours and Papiers Collés, 1918-1967, Antwerp, 1994, no. 1421 (illustrated p. 193).
Dallas, Museum for Contemporary Arts, René Magritte in America, December 1960 - January 1961, no. 58; this exhibition later travelled to Houston, Museum of Fine Arts.
Minneapolis, Walker Art Center, The Vision of René Magritte, September - October 1962, no. 51.
Little Rock, Arkansas, Magritte, May - June 1964.