Navigazione Generale Italiana
SS " Duilio " was the first Italian super ocean liner and one of the largest Italian merchant ships until 1925. She measured 24,281 gross register tons and was the sister of the SS "Giulio Cesare", which was launched in 1921. She was constructed for the Italian shipping company “Navigazione Generale Italiana” based in Genoa and constructed by Ansaldo Shipyard owned by Sestri Ponente.