Folder: S.F. Ships-Freighters.
Written on front: "KMP091501-9/15/62-San Diego, Calif: The 180-foot oceanographic research ship Trident, a former Army freighter converted at a cost of $350,000, sailed for her new home port of Kingston, R.I., a 5,780 mile voyage dubbed 'Operation Debut.' UPI TelePhoto As/fs (San Diego Out)".
Written on back: "'Trident' Research Ship."