National Geographic : 1959 Jan
KODACHROMESBY JOHNJ. KRAWCZYK( NATIONALGEOGRAPHICSOCIETY In the attack center Lt. Lalor, serving as conning officer, computes the ship's position. A periscope housing shines blue behind him; sonar screens and inertial navigator are close by. After the voyage, clock at right was given to Mrs. Dwight D. Eisenhower, who christened Nautilus.