- Archival materials (127)
- Collection descriptions (127)
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- Aeronautics (101)
- World War, 1939-1945 (35)
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- World War, 1914-1918 (26)
- Airplanes (20)
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- Boeing B-29 Superfortress (7)
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- Curtiss JN-4 Jenny Family (5)
- Vietnam War, 1961-1975 (5)
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- Airlines (3)
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- SPAD XIII (S.13) (3)
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- Bell P-59 Airacomet Series (2)
- Boeing B-52 Stratofortress Family (Model 464) (2)
- Curtiss JN-4D Jenny (2)
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- Douglas C-54 Skymaster Family (2)
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- Boeing C-97 Stratofreighter Family (Model 367) (1)
- Boeing Model 377 Stratocruiser Family (1)
- Boeing P-12 (Model 102) (1)
- Boeing-Vertol CH-47A Chinook, (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.