- Aeronautics (3)
- Air pilots (1)
- Arctic medicine (1)
- Aviation Instruction Center, 3rd (France) (1)
- Explorer II (Balloon) (1)
- Hazelhurst Field, Mineola, N.Y. Medical Research Laboratory (1)
- Naval aviation (1)
- Rescue dogs (1)
- Rescue work (1)
- Rescues (1)
- Space flight (1)
- Space suits (1)
- Wilmer Ophthalmological Institute (1)
- World War, 1914-1918 (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.