Portrait of Benjamin Franklin (Duplessis - Harvard), ca. 1778
Joseph-Siffred Duplessis (Attributed) Oil on canvas; H. 28 in. (71.1 cm), W. 22 1/2 in. (57.2 cm)
Harvard University Museums
(Cambridge, Mass.), 1943.235
An image can be found here. Type Duplessis into artist search.