File:North Rvr Tunnels - S tube shield 1905 (cut).jpg
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| Description |
English: View of the back of the hydraulic tunnel shield installed during construction in the south tube of the North River Tunnels under the Hudson River. The North River Tunnel project was part of the larger New York Tunnel Extension project of the Pennsylvania Railroad. |
| Date | |
| Source |
This file was derived from: North Rvr Tunnels - S tube shield 1905.jpg |
| Author | B.H.M. Hewett, W.L. Brown |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:03, 15 February 2020 | | 942 × 870 (333 KB) | Krib (talk | contribs) | User created page with UploadWizard |
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