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- Railroad facilities, 8 results
- Railroad tracks, 6 results
- Railroad trains, 4 results
- Vehicles, 4 results
- cellulose nitrate film, 3 results
- safety film, 3 results
- glass plate negatives, 2 results
- Railroad stations--Oregon--Portland, 2 results
- Union Station (Portland, Or.), 2 results
- Railroad stations, 1 results