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 Playing on the Stairs Photograph of Mabel Grubbs and two unknown women playing on the stairs of an unknown building.