Three masculine figures with robes

Drawing sketch. Charcoal drawing, highlighted in white chalk, depicting three male figures on their backs, who wear long, broad robes, which cover them almost entirely. The middle figure bears a cap on the head. In the upper left corner a spot of coal, a vestige of the act of sharpening the pencil. The purpose of this design seems to have been the study of the draperies and the light incident on them, because the white chalk highlight is only lateral, marking the whole figure.