- Aeronautics (2)
- Aeronautics, Military (2)
- Aircraft carriers (1)
- Airplanes (1)
- Coral Sea, Battle of the, 1942 (1)
- Korean War, 1950-1953 (1)
- Midway, Battle of, 1942 (1)
- Mining (1)
- Naval aviation (1)
- Oil wells (1)
- Pearl Harbor (Hawaii), Attack on, 1941 (1)
- Philippine Sea, Battles of the, 1944 (1)
- World War, 1914-1918 (1)
Our collections specialists actively work on the conservation, preservation, restoration, and long-term care of the objects in our collection. From full-scale restoration projects to applying preservation techniques and doing regular assessments, these activities form a crucial part of our stewardship of the National Collection.