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Topic
- Agricultural machinery 14
- Agriculture 14
- Harvesting 14
- Graminaceae 13
- Oregon State Agricultural College. Experiment Station 6
- Oregon Agricultural College. Experiment Station 3
- Hay 2
- Tractors 2
- Artichokes 1
- Combines (Agricultural machinery) 1
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Work Type
- photographic prints 14
- photographs 14
Format
- image/tiff 14
Decade
- 1920-1929 14