An optical illusion 3D lithograph, early 20th century, depicting Emile Zola, Captain Alfred Dreyfus and Major Esterhazy, with vertical slats hidden in the frame, in a gilt frame titled ‘La vérité est en marche et rien ne l'arrêtera’ (The truth is on the march and nothing will stop it), 73 x 60cm overallNote: This work celebrates the Dreyfus Affair, the political scandal that divided France from 1894 until 1906