Query: Covered bridges -- Switzerland
Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

Finding aid

Archives Center, National Museum of American History

Photographs of Lili Réthi

Archives Center, National Museum of American History

Imhoff tanks at Batavia, New York

Smithsonian Institution Archives

Finding aid

Smithsonian Institution Archives

Finding aid

Smithsonian Institution Archives

Finding aid

Archives Center, National Museum of American History

Incoming correspondence n

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