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Subjects
- Photographs shelf.2
- Aerial reconnaissance, American--History--20th century.1
- Airplanes.1
- Bombers.1
- Greco-Turkish War, 1897.1
- Lithography.1
- Military art & science.1
- Military officers--American--1890-1900.1
- Military officers.1
- Military reconnaissance--American.1
- Photographic interpretation (Military science)1
- Sightseers--1940-1950.1
- Soldiers--American--1940-1950.1
- Topographic maps.1
- Travel--1890-1900.1
- World War, 1939-1945--Aerial operations, American.1
- World War, 1939-1945--Campaigns--Western Front.1