Otto Sohn-Rethel (1877-1949), Study of a head injury
pastel on brown paper, monogrammed and dated March 27, 1916 in the middle left, inscribed in the middle right "Musk. Friedr. Rossbach", view of the back of the head with a wound of a disabled soldier of the 135th Infantry Regiment in WWI, good age-appropriate condition, creased, image 20.5 x 21 cm (HxW), passe-partout, overall dimensions 41 x 38 cm (HxW)