- Archival materials (3)
- Collection descriptions (3)
- Correspondence (2)
- Audiotapes (1)
- Black-and-white negatives (1)
- Certificates (1)
- Drawings (1)
- Electronic discs (cd) (1)
- Film reels (1)
- Movie scripts (1)
- Photographs (1)
- Publications (1)
- Scripts (documents) (1)
- Sound cassettes (1)
- Sound tape reels (1)
- Transcripts (1)
- Video recordings (1)
- Videodiscs (dvd) (1)
- Videotapes (1)
- Aeronautics (2)
- Aeronautics, Commercial (2)
- Astronautics (1)
- Autogiros (1)
- Documentary films (1)
- Herrick Vertaplane Family (1)
- Herrick rotary engine (1)
- Junkers W 33 Family (1)
- Junkers W 33b "Bremen" (1)
- Klemm L-20 "Yankee Doodle" (1)
- Manned space flight (1)
- Photographs (1)
- Rocketry (1)
- Space vehicles (1)
- Transatlantic flights (1)
- World War, 1914-1918 (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.