Julio González Étude pour la tête «Montserrat» nº 2 (Study for the Head of "Montserrat", No. 2) 1939-1941 (circa)
Julio González Visage et main à la mèche de cheveux (Face and Hand with Strand of Hair) 1941 (May 15th)
Julio González Portrait de Marie-Thérèse inachevé (Unfinished Portrait of Marie-Thérèse) 1941 (June 16th)
Fernando Gordillo Retrato en el balcón (Portrait on the Balcony) 1964 (circa) / Later print, before 1988
Fernando Gordillo Los paraguas de Pedro Bernardo (Pedro Bernardo's Umbrellas) 1965 / Later print, before 1988