File:Thames tunnel shield.png
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Thames_tunnel_shield.png (787 × 542 pixels, file size: 248 KB, MIME type: image/png)
Summary
Diagram of the tunnelling shield used to construct the Thames Tunnel, London.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:55, 14 January 2017 | | 787 × 542 (248 KB) | 127.0.0.1 (talk) | <p>Diagram of the tunnelling shield used to construct the Thames Tunnel, London. </p> |
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