"Composizione", around 1943, pencil, grease pencil and diluted tempera on paper applied on canvas,
Signature, probably apocryphal, "SIRONI" ballpoint pen, at the bottom right
Work filed by the Association for the Patronage and Promotion of the Figure and the Opera of Mario Sironi, Milan, with number 02/18 RA, 24,7x19,7 cm.