The USS G-4 at sea, most likely pre-WW I, circa 1914-15. Note the Allied signal bell on the fore deck aft of the hatch and the upper rudder all the way to the right, behind the two men.File:G4-10049-02.jpgA drawing from The Sun, March 14, 1915, of the Italian Laurenti design submarine that was used for the U.S. Submarine G-4.
