Cornell University Library Digital Collections
Subject
- Pit Mine10
- Pit Tracks1
- Pittman Repair Shop1
- Pittsburgh & Lake Erie1
- Poplar Avenue1
- Popular prints1
- Portraits1
- Pullman Cars7
- Purina5
- R. E. Ellis Draying1
- R.S. Armstrong & Bro. Co.4
- Railroad cars1,022
- Railroad crossings560
- Railroad passenger cars149
- Railroad stations106
- Railroad switches282
- Railroad terminals46
- Railroad tracks[remove]1,509
- Railroad yards444
- Railroads--Buildings and structures650