Format
- Black-and-white photographs (23912)
- Slides (photographs) (13799)
- Negatives (photographic) (9000)
- Radio programs (4888)
- Lantern slides (3658)
- Kodachrome (TM) (1046)
- Notebooks (611)
- Maps (367)
- Yearbooks (210)
- Short subjects (134)
- Speeches (129)
- Renderings (drawings) (115)
- Field notes (65)
- Blueprints (reprographic copies) (62)
- Topographic maps (62)
- Color photographs (36)
- Card indexes (26)
- Forestry maps (25)
- Presentations (communicative events) (25)
- Aerial photographs (18)
