five drawings, wax crayon on paper in a cover with handwritten text, each signed and dated 'Constant '51', dedicated 'fait pour Aldo van Eyck une soirée de Mai 1951 à Pigalle, Constant' on the inside of the cover, each drawing 31 x 38,5 cm.

Provenance: A gift from the artist to Aldo van Eyck in May 1951; Exhibited: Rotterdam, Museum Boijmans van Beuningen, Cobra 1948/51, 20 May-17 July 1966, no. 83 (one illustrated in b/w p. 64); Amsterdam, Stedelijk Museum, Constant: een illustratie van vrijheid, 28 November 1974-5 January 1975 (one illustrated in b/w); Amstelveen, Cobra Museum of Modern Art, Constant: ruimte + kleur, 28 May-25 September 2016, pp. 32/33 (illustrated in colour) and p. 137; Literature: Museumjournaal: themanummer Cobra, VII, no. 7/8, January/February 1962, p. 164 (illustrated in b/w); Willemijn Stokvis, Cobra, Amsterdam, 1985, p. 180 and p. 276, fig. 45 (illustrated in b/w); Jean-Clarence Lambert, Constant: les trois espaces, Paris, 1992, p. 52, no. 33 (one illustrated in b/w) and p. 206, no. 33