Cornell University Library Digital Collections
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Subject
- Allied Oil Co.1
- Bridges (built works)3
- Cities Service Oil Co.1
- Firestone Co.1
- Industries (organizations)1
- Pennsylvania Railroad12
- Railroad cars13
- Railroad crossings7
- Railroad switches4
- Railroad tracks[remove]14
- Railroads--Buildings and structures6
- Railroads--Freight3
- Railroads--Maintenance and repair1
- Railroads--Signaling3