A Japanese Type 97 shipboard attack aircraft (upper right) approaches USS Yorktown (CV-5) during the mid-afternoon torpedo attack by planes from the carrier Hiryu, 4 June 1942. Photographed from above Yorktown's signal station, immediately aft of her tripod foremast, looking forward and to starboard. Note mast leg with radar wave guide at left and signal halliards across the field of view. A .50 caliber machine gun, one of several mounted atop the island, is at bottom, with gun training limit rails above it. Official U.S. Navy Photograph, now in the collections of the National Archives.