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Filtering by: File Format image/tiff Remove constraint File Format: image/tiff Subject scientific expeditions Remove constraint Subject: scientific expeditions Time Period (Topic) 1940s (1940-1949) Remove constraint Time Period (Topic): 1940s (1940-1949) Time Period (Topic) 1930s (1930-1939) Remove constraint Time Period (Topic): 1930s (1930-1939)

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