Image: Plate from Nicholson-II
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Description: 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
Title: Plate from Nicholson-II
Credit: Plate from Peter Nicholson's book The Guide to Railway Masonry, containing a Complete Treatise on the Oblique Arch
Author: Peter Nicholson
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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