Limit your search
Creator
- Austria 5
- Bavaria (Germany) 2
- Switzerland 2
- Baden (Grand Duchy) 1
- Germany (West) 1
- Hungary 1
- Württemberg (Germany) 1
- Yugoslavia 1
Topic
- Water-supply 5
- Infrastructure (Economics) 1
- Water-power 1
Region
- Austria 5
- Germany 3
- Switzerland 2
- Hungary 1
- Republic of Croatia 1
- Serbia 1
- Slovenia 1