- Collection descriptions (9)
- Correspondence (6)
- Drawings (5)
- Photographs (4)
- Reports (4)
- Clippings (2)
- Manuscripts (2)
- Motion pictures (visual works) (2)
- Publications (2)
- Ephemera (1)
- Legal documents (1)
- Logs (records) (1)
- Maps (1)
- Negatives (1)
- Pamphlets (1)
- Scrapbooks (1)
- Technical manuals (1)
- Timetables (1)
- Videotapes (1)
- Aeronautics (8)
- Aircraft industry (3)
- Aeronautics, Military (2)
- Airlines (2)
- Periodicals (2)
- Aerial photography (1)
- Air mail service (1)
- Airplanes (1)
- Airports (1)
- Autogiros (1)
- Burgess Aircraft Family (1)
- Collective bargaining (1)
- Curtiss, General, Aircraft (1)
- Curtiss-Wright aircraft (1)
- Discrimination in employment (1)
- Helicopter transportation (1)
- Helicopters (1)
- Kellett Autogiro Family (1)
- Miller Corp MCA-1 Amphibian Biplane (1)
- Patent suits (1)
- Pitcairn PA-3 Orowing (1)
- Pitcairn PCA-2 Autogiro (1)
- Waco 10 Family (Aircraft) (1)
- Waco Aircraft Family (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.