Topic
- Farm buildings 5
- Feed industry 1
- Grain --Storage 5
- Grain elevators 2
- Grain trade 1
- Grain--Storage 1
- Iron and steel bridges 2
- Mills and mill-work 1
- Overhead electric lines 1
- Photography of farms 3
- Photography of men 1
- Photography of mountains 1
- Photography of railroads 43
- Photography of water 2
- Photography of women 2
- Photography of wood 2
- Photography, Agricultural 10
- Photography, Close-up 1
- Photography, Industrial 44
- Portrait photography 1