7185072 Medal of the Roman Emperor Diocletian (engraving) by French School, (19th century); Private Collection; (add.info.: Medal bearing a portrait of the Roman Emperor Diocletian (c244-311), who instigated the largest and bloodiest persecution of Christians under the Roman Empire in the early 4th Century. Illustration from Jesus-Christ, by Louis Veuillot, with Une Etude sur l\'Art Chretien, by E Cartier (Librairie de Firmin-Didot et Cie, Paris, 1876).); 穢 Look and Learn.