- Archival materials (84)
- Collection descriptions (84)
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- Aeronautics (71)
- Airplanes (16)
- Boeing B-29 Superfortress (13)
- Aeronautics, Commercial (10)
- Airplanes, Military (9)
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- Aeronautics and state (3)
- Flight training (3)
- Lockheed P-38 Lightning Family (3)
- North American P-51 Mustang Family (3)
- Republic P-47 (F-47) Thunderbolt Family (3)
- Aerodynamics (2)
- African American air pilots (2)
- Airlines (2)
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- Bell P-39 Airacobra Family (2)
- Boeing B-17 Flying Fortress Family (2)
- Consolidated B-24 Family (2)
- Curtiss JN-4 Jenny Family (2)
- Dayton Wright DH-4 (2)
- Douglas C-54 Skymaster Family (2)
- He 293 (missile) (2)
- Martin B-26 Marauder Family (2)
- Midway, Battle of, 1942 (2)
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- North American F-86 Sabre Family (2)
- Vietnam War, 1961-1975 (2)
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- World War, 1914-1918 (2)
- 28th Infantry Division (1)
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- Aichi D3A Val (Navy Type 99 Carrier Bomber) (1)
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- Alexander Eaglerock Aircraft Family (1)
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- Consolidated B-24 Liberator (1)
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- Consolidated F-7A Liberator (1)
- Coral Sea, Battle of the, 1942 (1)
- Curtiss C-46 Commando Family (1)
- Curtiss F-5L (PN-5) (1)
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- Douglas F4D (F-6) Skyray Family (1)
- Douglas O-2 (1)
- Douglas O-38 (1)
- Douglas SBD Dauntless Family (1)
- Fleet (Canada) Model 10 (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.