Portret van de heer van Duyl 

"Portret van de heer van Duyl" is a charcoal drawing by Dutch artist Thérèse Schwartze, who was active in the late 19th and early 20th centuries. This work is a portrait of a man, likely of the upper class due to his clothing, depicted in a realistic style. The subject is portrayed in a seated position, with his left hand resting on his knee. The artist's skill in capturing the subject's likeness is evident in the detailed rendering of his features, particularly the eyes, mustache, and beard. The charcoal technique used creates a sense of depth and texture, enhancing the overall realism of the piece. This artwork is a fine example of Schwartze's mastery of portraiture, a genre that she is known for.