Limit your search
Creator
- Crop and Soil Science 13
Topic
- Agricultural machinery 13
- Agriculture 13
- Graminaceae 13
- Harvesting 13
- Oregon State Agricultural College. Experiment Station 5
- Oregon Agricultural College. Experiment Station 3
- Hay 2
- Tractors 2
- Combines (Agricultural machinery) 1
- Vetch 1
Work Type
- photographic prints 13
- photographs 13
Format
- image/tiff 13
Decade
- 1920-1929 13