- Archival materials (8)
- Correspondence (5)
- Photographs (4)
- Reports (4)
- Articles (2)
- Maps (2)
- Audiocassettes (1)
- Cartoons (humorous images) (1)
- Manuscripts (1)
- Newsletters (1)
- Newspaper clippings (1)
- Notes (1)
- Publications (1)
- Scrapbooks (1)
- Speeches (1)
- Telegrams (1)
- Transcripts (1)
- Video recordings (1)
- Aeronautics (5)
- Aeronautics, Commercial (4)
- Air pilots (2)
- Endurance flights (2)
- Women in aeronautics (2)
- Aeronautics, Military (1)
- Airlines (1)
- Airships (1)
- Flight attendants (1)
- Flights around the world (1)
- Keystone K-78 Patrician (1)
- Nicholas-Beazley (Barling) NB-3 (1)
- Women air pilots (1)
- World War, 1939-1945 (1)
- Wright (Brothers) 1903 Flyer (1)
- Zeppelin LZ 127 Graf Zeppelin (1)
- Zeppelin LZ 129 Hindenburg (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.