WW2 1943 USN Office of Naval Intelligence, ONI 54 Series US Naval Vessels… The manual (10.25″ x 6″) is screw bound and was a working intelligence source during the War. As such, it shows typical cover wear owing to the fact that it’s tabbed and the tabs were often thumbed; having said that, the pages themselves are generally in very good condition a few toward the back have a little staining, as shown in pic. Though RESTRICTED in its day, the information has been declassified many decades ago. There is no pagination, but the book is pretty thick. Please note the pics for condition specifics and feel free to message me any questions you may have.