Sanford R. Gifford 

This portrait by Eastman Johnson, a prominent American realist painter, is a striking example of his masterful use of light and shadow. The subject, Sanford R. Gifford, is depicted in a dramatic chiaroscuro style, with his face illuminated in stark contrast to the dark background. The artist's keen observation of detail and the subtle nuances of human expression are evident in the subject's gaze and the subtle lines of his face. Johnson's realistic approach to portraiture, common in the late 19th century, captured the essence of his subjects, making his works highly valued for their authenticity.