- Archival materials (20)
- Collection descriptions (20)
- Photographs (9)
- Maps (5)
- Aerial photographs (4)
- Clippings (3)
- Correspondence (3)
- Publications (3)
- Scrapbooks (3)
- Diaries (2)
- Photograph albums (2)
- Articles (1)
- Digital images (1)
- Drawings (1)
- Financial records (1)
- Glass negatives (1)
- Guidebooks (1)
- Logs (records) (1)
- Manuals (1)
- Manuscripts (1)
- Menus (1)
- Motion pictures (visual works) (1)
- Negatives (1)
- Postcards (1)
- Videotapes (1)
- Aeronautics (16)
- Aeronautics, Military (8)
- World War, 1914-1918 (5)
- Aeronautics, Commercial (4)
- World War, 1939-1945 (4)
- Airplanes (3)
- Air pilots (2)
- Airlines (2)
- Airports (2)
- 14th Balloon Photo Section (1)
- Aerial reconnaissance (1)
- Air mail service (1)
- Aircraft industry (1)
- Airships (1)
- Artillery (1)
- Atomic bomb (1)
- Balloons (1)
- Cartography (1)
- Curtiss HS-1L (1)
- Curtiss N-9 (1)
- Flight training (1)
- Fokker D.VIII (1)
- Gliders (1)
- Halberstadt C.II (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)
- Royal Aircraft Factory (RAF) S.E.5 (1)
- SPAD XIV (S.14) (1)
- Seaplanes (1)
- Spectrum analysis (1)
- Tanks (1)
- Women air pilots (1)
- de Havilland (Airco) D.H.4 (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.