Portrait of Mrs Louise Salmond, half-length, in a white dress, in a feigned oval

ATTRIBUTED TO JOHN OPIE (TREVELLAS 1761-1807 LONDON) Portrait of Mrs Louise Salmond, half-length, in a white dress, in a feigned oval oil on canvas 30 ¼ x 24 7/8 in. (76.6 x 63.3 cm.) in a George III giltwood Maratta frame