- Archival materials (13)
- Photographs (8)
- Correspondence (2)
- Photographic prints (2)
- Calendars (1)
- Certificates (1)
- Color transparencies (1)
- Diaries (1)
- Drawings (1)
- Financial records (1)
- Glass negatives (1)
- Manuscripts (1)
- Motion pictures (visual works) (1)
- Publications (1)
- Technical reports (1)
- Videotapes (1)
- Aeronautics (9)
- Aeronautics, Military (4)
- Airplanes (3)
- World War, 1914-1918 (3)
- Aeronautics, Commercial (2)
- Astronautics (2)
- Rocket engines (2)
- World War, 1939-1945 (2)
- Aerial photography (1)
- Aeronautics designers (1)
- Air pilots (1)
- Aircraft carriers (1)
- Aircraft industry (1)
- Airplanes, Military (1)
- Airships (1)
- Beech Bonanza 35 (1)
- Bell P-59 Airacomet Series (1)
- Convair 240 Convair-Liner (1)
- Coral Sea, Battle of the, 1942 (1)
- Douglas DC-3 Family (1)
- Focke-Wulf Fw 56 Stösser (Falcon) (1)
- Gliders (Aeronautics) (1)
- Heinkel He 111Family (1)
- Heinkel He 112 Family (1)
- Heinkel He 162 Spatz (Sparrow) Volksjager (People's Fighter) (1)
- Heinkel He 176 (1)
- Junkers Ju 388 Family (1)
- Midway, Battle of, 1942 (1)
- Mining (1)
- Naval aviation (1)
- Oil wells (1)
- Pearl Harbor (Hawaii), Attack on, 1941 (1)
- Periodicals (1)
- Philippine Sea, Battles of the, 1944 (1)
- Propulsion systems (1)
- Rocketry (1)
- Rockets (Aeronautics) (1)
- V-1 rocket (1)
- V-2 rocket (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.