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Medium
- negatives (photographs)944
- black-and-white negatives625
- photographs248
- slides (photographs)64
- photographic transparencies15
- color transparencies14
- lectures3
- documents (object genre)2
- lesson plans2
- transcripts2
- videotapes2
- audiocassettes1
- black-and-white transparencies1
- fliers (printed matter)1
- oral histories (literary works)1
- videocassettes1