Genoa, Museum of the Treasury of the Cathedral of San Lorenzo: Plate of St. John the Baptist. Roman manufacture of the first century d. C. and goldsmith of Paris in the beginning of the fifteenth century. Chalcedony, gold, rubies, enamel.The Plate of St. John, which is said to have greeted the head of John the Baptist, is the work of ancient Roman imperial age in chalcedony, decorated with a head of the Precursor in gold and enamels en ronde bosse, The decoration of the head was performed in 1400 in Paris for one of the princes of the house of Valois, and donated to the Cathedral of Genoa by Pope Innocent VIII Cybo, Genoese, who had inherited from Jean Balue, French cardinal, a person who had
