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Topical Subjects
- Air ducts.3
- Bridges.1
- Coal Mines and Mining--Progressive Miners Of America--Ozanic Collection.17
- Coal mines and mining--Illinois--Harrisburg.2
- Coal mines and mining.3
- Floods--Illinois--Harrisburg.12
- Floods--Illinois--Muddy.1
- Floods.2
- Machine shops.1
- Power-plants--Illinois--Muddy.1
- Railroads--Track.1
- Service stations--Illinois--Harrisburg.1