Eugène Thiébault’s Henri Robin and a Specter, in which a man about to shoot himself is confronted by his own ghost. Thiébault achieved the effect of the ghost through the use of double exposure. Eugène Thiébault (French, born 1825) Henri Robin and a Specter, 1863 Albumen silver print 22.9 x 17.4 cm Collection of Gérard Lévy, Paris