An Old Man Thinking 

"An Old Man Thinking" is a portrait by Dutch Golden Age painter Salomon Koninck, who was active in the first half of the 17th century. The oil on canvas depicts a seated older man, dressed in a black robe, gazing pensively off to the side. His long white beard and furrowed brow emphasize his age and the weight of his thoughts. The artist's masterful use of chiaroscuro, with a dark background highlighting the subject's face, creates a sense of introspection and mystery. Koninck's portraits are known for their psychological depth, capturing the essence of his sitters.