- Archival materials (15)
- Collection descriptions (15)
- Photographs (13)
- Correspondence (9)
- Maps (4)
- Clippings (3)
- Diaries (3)
- Manuscripts (3)
- Scrapbooks (3)
- Articles (2)
- Reports (2)
- Audiocassettes (1)
- Audiotapes (1)
- Drawings (1)
- Financial records (1)
- Logs (records) (1)
- Newspapers (1)
- Notes (1)
- Photograph albums (1)
- Programs (1)
- Transcripts (1)
- Videotapes (1)
- Aeronautics (15)
- Aeronautics, Commercial (9)
- Periodicals (6)
- Air pilots (4)
- World War, 1914-1918 (4)
- World War, 1939-1945 (3)
- Aerial photography (2)
- Airships (2)
- Balloons (2)
- Fighter pilots (2)
- Works of art (2)
- Aerial reconnaissance (1)
- Aeronautical engineers (1)
- Aeronautics and state (1)
- African American air pilots (1)
- Air defenses (1)
- Air mail service (1)
- Airplanes (1)
- Cartography (1)
- Flight attendants (1)
- Gliding and soaring (1)
- Kites (1)
- Naval aviation (1)
- Photogrammetrists (1)
- Photogrammetry (1)
- Remote sensing (1)
- SPAD XIII (S.13) "Smith IV" (1)
- Women air pilots (1)
- Women in aeronautics (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.