James Calder Macphail n.d. The Lazzaretto or Quarantine Hospital at Manoel Island, Valletta, Malta. It later became an RN submarine and Mine Sweeper base known as HMS Phoenicia [Album of the Edinburgh Calotype Club]
Fort Manoel is barely visible to right behind the Lazzaretto. The ships to left are undergoing quarantine as they have just arrived - probably from some Middle Eastern or North African port.