Eugeniusz ZAK (1887–1926), Sketches of a man’s head, a reclining male figure, a piece of furniture, and a dog, 1904

pencil, light cream-colored paper weighing approx. 100 g/m²; 21.8 x 17.5 cm;
at the bottom right, a facsimile of the artist’s signature: Eug Zak.
The sketchbook is dated 1904 based on the date on page 11 of the sketchbook.

The drawing is accompanied by a certificate of authenticity issued by Adam Konopacki’s Art Consultant Agency on March 15, 2021.