 The middle, occupied by the pilot, was surmounted by a periscope fitted with lenticular portholes through which an electric search-lamp lighted the way through the water.The forward compartment was used for passengers.In the 1890s, "Sword" was in the Port of St. George at the Bahamas when authorities found the pirate Ker Karraje had established himself in a cavern, accessible only by submarine, on the desolate neighboring island of Back Cup.