Porträt eines Mannes mit französischem Bonnet de police 

"Porträt eines Mannes mit französischem Bonnet de police" is a drawing by German artist Karl Sandhaas. It is a portrait of a man in a French police cap, a common style during the Napoleonic era. Sandhaas's work often focused on everyday people and scenes, capturing the details and character of his subjects. The drawing, held at the Städel Museum, demonstrates Sandhaas's skillful use of line and shading to create a realistic and expressive portrait.