- Archival materials (3)
- Audiotapes (1)
- Black-and-white negatives (1)
- Black-and-white photographs (1)
- Color negatives (1)
- Color photographs (1)
- Color slides (1)
- Correspondence (1)
- Ephemera (1)
- Financial records (1)
- Manuscripts (1)
- Newsletters (1)
- Photographic prints (1)
- Photographs (1)
- Publications (1)
- Telegrams (1)
- Aeronautics (2)
- Apollo Project (2)
- Gemini Project (2)
- Mercury Project (2)
- Aeronautics, Military (1)
- Color photography (1)
- Douglas Aircraft Family (1)
- Gliding and soaring (1)
- McDonnell Aircraft Family (1)
- McDonnell F-4 (F4H) Phantom II Family (1)
- Periodicals (1)
- Project Apollo (U.S.) (1)
- Radar air traffic control systems (1)
- Saturn 5 Launch Vehicle (1)
- Trophies (1)
- United States Air Force (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.