Student of the Department of Conservation of Antiquities and Works of Art Eirini Mitsi, 23, works on an amphora retrieved from a shipwreck site on the island of Fournoi, Greece, September 20, 2018. Picture taken September 20, 2018. REUTERS/Alkis Konstantinidis

Student of the Department of Conservation of Antiquities and Works of Art Giorgos Agavanakis, 24, takes pictures as fellow student Eirini Mitsi, 23, takes notes on an amphora retrieved from a shipwreck site on the island of Fournoi, Greece, September 20, 2018. Picture taken September 20, 2018. REUTERS/Alkis Konstantinidis

Students of the Department of Conservation of Antiquities and Works of Art Giorgos Agavanakis, 24, Helen Margarita Bardas, 25, and Eirini Mitsi, 23, work on amphorae retrieved from shipwreck sites on the island of Fournoi, Greece, September 20, 2018. Picture taken September 20, 2018. REUTERS/Alkis Konstantinidis