there until the end of World War II. O-7 was decommissioned on 2 July 1945; was struck from the Naval Vessel Register on 11 July 1945; and sold to North American Smelting Company of Philadelphia on 22 January 1946. Notes References External links United States O-class submarines World War I submarines of the United States World War II submarines of the United States Ships built in Quincy, Massachusetts 1917 ships