Antoni Tàpies

Acquired directly from the artist by the present owner

Paris, Galerie Lelong, Tàpies: Peintures, January - March 2003, cat. no. 25, p. 53, illustrated in color

London, Waddington Galleries, Antoni Tàpies: Works on Paper and Sculpture, March - April 2005, cat. no. 7, illustrated in color

Anna Agustí, Tàpies–Obra Completa Volum 8è. 1998–2004, Barcelona 2005, cat. no. 7291, p. 141, illustrated (translated as Black Quadrilateral)