"Portrait of James Douglas, Earl of Morton, bust directed to left but looking at the viewer, wearing a tall hat and brocaded jacket; in an architectural oval with curtain beyond"--British Museum online catalogue
Description:
Title from text within image., Text below image: In the Possession of the Rigt. Hon. the Earl of Morton., and Plate from: Birch, T. The heads of illustrious persons of Great Britain. London : John and Paul Knapton, MDCCXLIII-MDCCLI [1743-1751].