GIA4773842 Saint Gennaro or Saint Janvier, patron of the city of Naples, holding in his hands the ampoule containing his blood. Coloured popular print from the 19th century. by Unknown Artist, (19th century); Private Collection; (add.info.: Saint Gennaro or Saint Janvier, patron of the city of Naples, holding in his hands the ampoule containing his blood. Coloured popular print from the 19th century.); by Giancarlo Costa; out of copyright.