- Aeronautics (8)
- Periodicals (3)
- Aerial photography (2)
- Aeronautics, Commercial (2)
- Air pilots (2)
- Fighter pilots (2)
- World War, 1914-1918 (2)
- World War, 1939-1945 (2)
- Aerial reconnaissance (1)
- Aeronautics and state (1)
- Boeing B-29 Superfortress (1)
- Bombs (1)
- Cartography (1)
- Cold War (1)
- Douglas World Cruiser (DWC) (1)
- Endurance flights (1)
- Flights around the world (1)
- Lockheed U-2 Family (1)
- Photographic reconnaissance systems (1)
- Prisoners of war (1)
- SPAD XIII (S.13) "Smith IV" (1)
- United States (1)
- Works of art (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.