S/S Nicolaos ( ex Valdivagna )
- Type of ship: Freighter
- Lenght: 121 meters
- Position: Capo Ferrato
- Depht: 60 to 74 meters
Built 1913 on the shipyard Cantieri San Rocco, belonging to the Soc. di Navigazione Martinolich in Trieste or to Azienda Carboni Italiani of Rome; registered at CompaMare Trieste, nr.82. The 9th of January 1941, on the way to S.Antioco,at around 9.45am, between Capo Ferrato and Capo Carbonara, sunk by the british submarine HMS Pandora.