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Subjects
- Aerial reconnaissance, American--History--20th century.1
- Airplanes.1
- Bombers.1
- Chinese.1
- Filipinos.1
- Japanese.1
- Lithography.1
- Military art & science.1
- Military officers.1
- Military reconnaissance--American.1
- Panamanians.1
- Photographic interpretation (Military science)1
- Photographs shelf.2
- Russians.1
- Sailors--American--1910-1920.1
- Sightseers--1910-1920.1
- Sightseers--1940-1950.1
- Soldiers--American--1910-1920.1
- Soldiers--American--1940-1950.1
- Topographic maps.1