File:Track Maintenance (8223.A902.RR).jpg
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![File:Track Maintenance (8223.A902.RR).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Track_Maintenance_%288223.A902.RR%29.jpg/753px-Track_Maintenance_%288223.A902.RR%29.jpg?20200304184147)
Size of this preview: 753 × 600 pixels. Other resolutions: 302 × 240 pixels | 603 × 480 pixels | 965 × 768 pixels | 1,280 × 1,019 pixels | 2,560 × 2,039 pixels | 3,000 × 2,389 pixels.
Original file (3,000 × 2,389 pixels, file size: 995 KB, MIME type: image/jpeg)
Categories:
- Historic Pittsburgh Collection
- Wabash Bridge, Pittsburgh
- Trains in Pittsburgh
- Pittsburgh Subdivision
- Pittsburgh and Lake Erie Railroad
- Semaphore signals in Pittsburgh
- Interlocking towers in Pittsburgh
- Rail yards in Pittsburgh
- 1877 Point Bridge
- Manchester Bridge (Pittsburgh)
- Boats in Pittsburgh
- Buildings in Pittsburgh
- 1917 in Pittsburgh
- Rail track construction
- Number 29 on signs