- Archival materials (29)
- Collection descriptions (29)
- Photographs (9)
- Correspondence (8)
- Publications (4)
- Scrapbooks (4)
- Postcards (3)
- Articles (2)
- Clippings (2)
- Manuscripts (2)
- Stereoscopic photographs (2)
- Cartes-de-visite (1)
- Certificates (1)
- Ephemera (1)
- Logbooks (1)
- Maps (1)
- Menus (1)
- Newsclippings (1)
- Passports (1)
- Photographic prints (1)
- Reports (1)
- Woodcuts (1)
- Aeronautics (28)
- Airships (6)
- Aeronautics, Military (5)
- Kites (3)
- World War, 1914-1918 (3)
- Ballooning (2)
- Civil War, 1861-1865 (2)
- Periodicals (2)
- 14th Balloon Photo Section (1)
- Aerial photography (1)
- Aeronautical sports (1)
- Aeronautics in art (1)
- Aeronautics, Commercial (1)
- Air defenses (1)
- Air pilots (1)
- Airplanes (1)
- Airports (1)
- Artillery (1)
- Balloon ascensions (1)
- Balloon gases (1)
- Balloonists (1)
- Buffalo (Airship) (1)
- Clouth V (1)
- Flight training (1)
- Fokker D.VIII (1)
- Ganymede (Airship) (1)
- Gliding and soaring (1)
- Great Western (Airship) (1)
- Halberstadt C.II (1)
- Langley Aerodrome No 5 (1895-96) (1)
- Madame Carlotta (Airship) (1)
- Meteorology (1)
- Meterologists (1)
- Mt. Lowe Railway (1)
- Phantom Balloons (Airships) (1)
- Pneumatics (1)
- Railroads (1)
- Research aircraft (1)
- Royal Aircraft Factory (RAF) S.E.5 (1)
- Russo-Japanese War, 1904-1905 (1)
- SPAD XIV (S.14) (1)
- South African War, 1899-1902 (1)
- Spanish-American War, 1898 (1)
- Tanks (1)
- The Aerial (Airship) (1)
- Travel (1)
- U.S. Signal Corps SC-1 free balloon (1)
- Works of art (1)
- World War, 1939-1945 (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.