- Archival materials (36)
- Collection descriptions (36)
- Photographs (17)
- Correspondence (8)
- Publications (6)
- Scrapbooks (4)
- Articles (3)
- Diaries (3)
- Drawings (3)
- Clippings (2)
- Manuscripts (2)
- Maps (2)
- Newspaper clippings (2)
- Photographic prints (2)
- Postcards (2)
- Aerial photographs (1)
- Black-and-white negatives (1)
- Booklets (1)
- Christmas cards (1)
- Invitations (1)
- Letters (1)
- Memorandums (1)
- Menus (1)
- Negatives (1)
- Newspapers (1)
- Patents (1)
- Personal correspondence (1)
- Printed ephemera (1)
- Programs (1)
- Stereoscopic photographs (1)
- Technical reports (1)
- Woodcuts (1)
- Aeronautics (33)
- Aeronautics, Commercial (6)
- Balloons (6)
- Aeronautics, Military (5)
- Airplanes (4)
- ZR-1 Shenandoah (4)
- Zeppelin LZ 129 Hindenburg (4)
- Kites (3)
- Naval aviation (3)
- World War, 1914-1918 (3)
- Periodicals (2)
- USS Los Angeles ( ZR-3) (2)
- Works of art (2)
- Zeppelin LZ 127 Graf Zeppelin (2)
- Aerial photography (1)
- Aeronautical engineers (1)
- Air pilots (1)
- Aircraft accidents (1)
- Aircraft engines (1)
- Airlines (1)
- Airports (1)
- Antisubmarine aircraft (1)
- Ballooning (1)
- Balloons, Captive (1)
- Buffalo (Airship) (1)
- Civil War, 1861-1865 (1)
- Dornier Do X (1)
- Electricity in aeronautics (1)
- Ganymede (Airship) (1)
- Gliders (1)
- Gliding and soaring (1)
- Great Western (Airship) (1)
- Hangars (1)
- Inventors (1)
- Langley Aerodrome No 5 (1895-96) (1)
- Madame Carlotta (Airship) (1)
- Navigation (Aeronautics) (1)
- Phantom Balloons (Airships) (1)
- Propulsion systems (1)
- Radio in aeronautics (1)
- Research aircraft (1)
- Russo-Japanese War, 1904-1905 (1)
- Seaplanes (1)
- Slate Aircraft Corp (Thomas B. Slate) "City of Glendale" (1)
- South African War, 1899-1902 (1)
- Spanish-American War, 1898 (1)
- The Aerial (Airship) (1)
- Transatlantic flights (1)
- U.S. Signal Corps SC-1 free balloon (1)
- USS Akron (ZRS-4) (1)
- USS Macon (ZRS-5) (1)
- Wellman-Vaniman America (1)
- Women air pilots (1)
- Women in aeronautics (1)
- World War, 1939-1945 (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.