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File Format
image/jpeg
Remove constraint File Format: image/jpeg
File Format
video/x-msvideo
Remove constraint File Format: video/x-msvideo
Subject
antarctica--aerial exploration
Remove constraint Subject: antarctica--aerial exploration
Subject
explorers
Remove constraint Subject: explorers
Time Period (Topic)
1930s (1930-1939)
Remove constraint Time Period (Topic): 1930s (1930-1939)