Complex sentence: The painting is, displayed in a frame of Whistler's own design in the Musée d'Orsay in Paris, having been bought by the French state in 1891.
Split into simpler sentences: The painting is, displayed in a frame of Whistler's own design. It is exhibited in and held by the Musée d'Orsay in Paris, having been bought by the French state in 1891.