Margaretta Drexel, Countess of Winchilsea and Nottingham John Singer Sargent (1856-1925)

The picture has something of this: portrait, people, wear, woman, sepia, vintage, man, profile, sepia pigment, facial expression, antique, retro, side view, paper.
Perhaps it’s a black and white drawing of a woman in a dress with a necklace on her neck and her hair in a bun, looking to the side.