English: FORT DRUM. El Fraile Island before the concrete battleship was constructed.
Date
circa 1909
date QS:P,+1909-00-00T00:00:00Z/9,P1480,Q5727902
Source
Morton, Louis (1953) "CHAPTER XXVII: The Siege of Corregidor" in The Fall of the Philippines, United States Army in World War II: War in the Pacific, Washington, D.C.: Office of the Chief of Military History, Department of the Army, pp. 476