- Archival materials (17)
- Collection descriptions (17)
- Photographs (9)
- Maps (4)
- Correspondence (3)
- Publications (3)
- Aerial photographs (2)
- Clippings (2)
- Diaries (2)
- Photograph albums (2)
- Drawings (1)
- Financial records (1)
- Glass negatives (1)
- Guidebooks (1)
- Logs (records) (1)
- Manuals (1)
- Manuscripts (1)
- Motion pictures (visual works) (1)
- Negatives (1)
- Postcards (1)
- Scrapbooks (1)
- Videotapes (1)
- Aeronautics, Military (8)
- Aeronautics, Commercial (4)
- World War, 1914-1918 (4)
- Airplanes (3)
- World War, 1939-1945 (3)
- Air pilots (2)
- Airlines (2)
- Airports (2)
- Airships (2)
- Aerial reconnaissance (1)
- Aeronautical instruments (1)
- Air mail service (1)
- Aircraft industry (1)
- Balloons (1)
- Cartography (1)
- Curtiss HS-1L (1)
- Curtiss N-9 (1)
- Flight training (1)
- Gliders (1)
- Gliding and soaring (1)
- Helicopters (1)
- Kites (1)
- Martin (Glenn L.) MB-2 (1)
- Periodicals (1)
- Photogrammetrists (1)
- Photogrammetry (1)
- Photographs (1)
- Remote sensing (1)
- Research aircraft (1)
- Seaplanes (1)
- Women air pilots (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.