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Medium
- black-and-white photographs[remove]980
- photographs36
- documentary photographs31
- gelatin silver prints31
- instructional materials10
- sound recordings10
- articles9
- documentaries and factual works7
- letters (correspondence)6
- reports6
- texts (document genres)5
- timelines (chronologies)5
- group portraits4
- transcripts4
- color photographs3
- correspondence3
- online exhibitions3
- pamphlets3
- web sites3
- archival materials2