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Summary
| Description |
English: A plate from Peter Nicholson's book The Guide to Railway Masonry, containing a Complete Treatise on the Oblique Arch showing the development of the intrados of a helicoidal skew arch against its plan view |
| Date | |
| Source | Plate from Peter Nicholson's book The Guide to Railway Masonry, containing a Complete Treatise on the Oblique Arch |
| Author | Peter Nicholson |
Licensing
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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.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:51, 31 August 2009 | | 490 × 654 (58 KB) | MegaPedant | {{Information |Description={{en|1=A plate from Peter Nicholson's book ''The Guide to Railway Masonry, containing a Complete Treatise on the Oblique Arch'' showing the development of the intrados of a helicoidal skew arch against its plan view}} |Source=Pl |
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