File:Breaking up from heading in soft ground (Walker 1888).jpg
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Size of this preview: 347 × 599 pixels. Other resolutions: 139 × 240 pixels | 278 × 480 pixels | 445 × 768 pixels | 593 × 1,024 pixels | 1,186 × 2,048 pixels | 2,756 × 4,759 pixels.
Original file (2,756 × 4,759 pixels, file size: 1.03 MB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:13, 20 November 2011 | 2,756 × 4,759 (1.03 MB) | Iain Bell | {{Information |Description=Breaking up from heading in soft ground (Severn tunnel construction) |Source=''Original:'' Thomas A. Walker (1888). The Severn Tunnel. Facing page 82.<br>''Scan:'' Internet Archive: http://www.archive.org/details/severntunnelits |
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