File:Zoo Substation. Philadelphia, Philadelphia Co., PA. Sec. 1101, MP 87.25. - Northeast Railroad Corridor, Amtrak route between Delaware-Pennsylvania and Pennsylvania-New Jersey HAER PA,51-PHILA,694-20.tif
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Size of this JPG preview of this TIF file: 773 × 600 pixels. Other resolutions: 310 × 240 pixels | 619 × 480 pixels | 990 × 768 pixels | 1,280 × 993 pixels | 2,560 × 1,986 pixels | 5,000 × 3,879 pixels.
Original file (5,000 × 3,879 pixels, file size: 18.5 MB, MIME type: image/tiff)
Categories:
- Rail transport in Philadelphia
- Zoo interlocking
- Historic American Engineering Record images of the Northeast Corridor
- Aerial photographs of Philadelphia
- 1977 in Pennsylvania
- Amtrak in 1977
- April 1977 in the United States
- Rail transport electrical substations in the United States
- Interlocking towers of the Pennsylvania Railroad
- Interlocking towers on the Northeast Corridor
- Aerial photographs of electrical substations
- Interlocking towers in Pennsylvania