Browse Items (1 total) Tags: O-12 Browse All Browse by Tag Search Items Sort by: Title Creator Date Added O-12 in Dry Dock Photograph of O-12 submarine in dry dock during World War I. Tags: Eugene R. Roberts, O-12, Roberts Family Collection, Submarine, U.S. Navy, US Navy, World War I, WWI Featured Item Committees - June 1975 This is a list of committees for the Board in June 1975.