Seawolf Submarine SSN21 Model Wall Plaque John Dalton Secretary Of The Navy Seawolf Submarine SSN21 Model Wall Plaque John Dalton Secretary Of The Navy. Wall Plaque presented to John Dalton the secretary of the navy in 1995. Plaque is 20.5 long. Posted in seawolf on 5 November 2026 and tagged dalton, john, model, navy, plaque, seawolf, secretary, ssn21, submarine, wall Comments Off ← The Seafarers Time-Life Books Complete 22 Volume Set Hardcover Maritime History U. S. Frigate Constitution Original Hull Wood Canon 1927 Plaque Keel Laid 1794 →