Issue link: http://read.uberflip.com/i/1518405
18 Preparatory sketch for: Parrot, 1919 Pencil on paper Sheet size 11 x 11.5, image size 6 x 11 cm P R O V E N A N C E Private Collection, London L I T E R A T U R E Olena Novikova, Konstyantin Piskorsky. Rodovid Publishers, Kyiv 2006, p. 73 (ill.)
