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Subject
- Railroads38
- Roads16
- World War, 1939-19458
- Administrative and political divisions7
- Local transit3
- Mines and mineral resources3
- World maps3
- Airways2
- Maps2
- Systems and standards2
- Time2
- Description and travel1
- Discoveries in geography1
- Discovery and exploration1
- Distances, etc1
- Early maps1
- Electric railroads1
- Exhibitions1
- Geology1
- Gold mines and mining1
