- Archival materials (9)
- Collection descriptions (9)
- Photographs (9)
- Correspondence (6)
- Diaries (3)
- Brochures (2)
- Publications (2)
- Advertisements (1)
- Business records (1)
- Catalogs (1)
- Clippings (1)
- Ephemera (1)
- Gigabytes (1)
- Manuals (1)
- Newspapers (1)
- Photographic postcards (1)
- Postcards (1)
- Programs (1)
- Scripts (documents) (1)
- Tickets (1)
- Video recordings (1)
- Aeronautics (9)
- Aeronautics, Commercial (3)
- Air travel (2)
- Periodicals (2)
- Women air pilots (2)
- Women in aeronautics (2)
- Aeronautics, Military (1)
- Air mail service (1)
- Air pilots (1)
- Aircraft supplies industry (1)
- Airlines (1)
- Airplanes (1)
- Antoinette Aircraft Family (1)
- Bleriot Aircraft Family (1)
- Breguet Aircraft Family (1)
- Bristol Aircraft Family (1)
- Burgess Aircraft Family (1)
- Cessna 205 (1)
- Curtiss, General, Aircraft (1)
- Deperdussin Aircraft Family (1)
- Douglas World Cruiser (DWC) (1)
- Endurance flights (1)
- Flight training (1)
- Flights around the world (1)
- Ford Tri-Motor Family (1)
- Gallaudet Type C Military Tractor Biplane Family (1)
- Lockheed Aircraft Family (1)
- Moisant (Monoplane Co) 1914 Bluebird Monoplane (1)
- Nicholas-Beazley (Barling) NB-3 (1)
- Nieuport Aircraft Family (1)
- Railroad travel (1)
- SPAD Aircraft Family (1)
- Sloane Aircraft Family (1)
- Voisin Aircraft Family (1)
- Works of art (1)
- World War, 1939-1945 (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.