Signature bottom right. On the reverse: label Gallery Moos York, Toronto, in marker on the frame "Portrait" and "(cat. picasso n. 154)/expo a Paris, Grand Palais".
Bibliography: 1977, E. Crispolti, Bolaffi general catalog of the work of Enrico Baj, Edizioni Giulio Bolaffi Editore Turin, n. 1359; 2007, Enrico Baj. "Objectsubject", Anfiteatro Arte exhibition catalog October 2007 - January 2008, Padua, p. 74.