caption: The image shows a portrait of a man in a black coat and white hair, painted on a white surface. The man is believed to be Sir Thomas Rowlandson, as indicated by the text at the bottom of the painting. He has a serious expression on his face, and his hands are clasped in front of him. His hair is neatly combed and his eyes are looking off to the side. He is wearing a black dress with a white collar and cuffs, and a white shawl draped over his shoulders.