Antoni Tàpies, 'Collage noir (Black Collage)', Lot 19
Editions & Works On Paper, 25 October
Martha Jackson Gallery, New York (label on reverse of frame)
Private Collection, Los Angeles
Martha Jackson Gallery, New York, 1968, cat. no. 34 (reproduced)
Anna Agustí, Tàpies, Catalogue raisonné Volume 2. 1961-1968, no. 1542, p. 304