männlicher Akt 

This charcoal drawing, "männlicher Akt," by Karl Wiener is a study of the male nude. Created in 1915, the drawing depicts a man in a contemplative pose, leaning on a staff and resting his chin on his hand. The artist's attention to detail and use of shading creates a realistic and emotive depiction of the figure. The drawing is a testament to Wiener's skill as a draftsman and his interest in the human form.