The Italian heavy cruiser Bolzano under attack by Swordfish of the Fleet Air Arm on 28th March 1941.
The photograph taken from the second aircraft shows the splash of a torpedo entering the water.
unknown, Royal Navy
Chapter 4, Playfair, I.S.O. (1956). The Mediterranean and Middle East: "The Germans come to the Help of their Ally" (1941). HISTORY OF THE SECOND WORLD WAR. II. London: Her Majesty's Stationery Office.