NH 42542
USS Alert (Submarine Tender #4), serving as tender for the Third Submarine Division of the Pacific Fleet, laying alongside the wharf at Kuahua, U.S. Naval Station, Pearl Harbor, 22 August 1917. K-3 (Submarine #34) and K-4 (Submarine #35) are identifiable alongside; the unidentifiable “boat” is probably either K-7 (Submarine #38) or K-8 (Submarine #39).Official U.S. Navy Photograph, from the collections of the Naval History and Heritage Command. Catalog #: NH 42542