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Reference number

SM 71/2/61


Survey drawing of the existing Royal Entrance (copy), 20 August 1822


Elevation of the Royal Entrance with detail (section) through battlements; (verso) elevation of the exterior of the Scala Regia


bar scale of 1/3 inch to 1 foot; (verso) bar scale of 1/2 inch to 1 foot


labelled: A (twice), B (twice) and dimensions given; (verso, pencil) Level of Floor, Level of Princes Chamber and some dimensions given

Signed and dated

  • 14 August 1822
    August 14th 1822; (verso) 20 Augst 1822

Medium and dimensions

Pen, hatching, (verso: pen and sepia wash), pricked for transfer on stout wove paper (544 x 757)


David Alfred Mocatta (1806 - 1882)
Pupil March 1821 - February 1827.


Smith & Allnutt 1817


The existing Royal Entrance by James Wyatt is 19' 10½'' high to the top of the battlements and 27' 8½'' to the top of the pinnacles. The arcade is 11' 11'' high. The battlements are shown in section - only the front (visible) side is carved. This drawing appears to be a loose copy of SM 89/3/37 (q.v.). On the verso is a rare design for the exterior of the new Scala Regia. It has a large tripartite, round-headed window that corresponds to the central bay of the interior. In pencil is the outline of the dome and lantern over the central bay.



Digitisation of the Drawings Collection has been made possible through the generosity of the Leon Levy Foundation

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Sir John Soane's collection includes some 30,000 architectural, design and topographical drawings which is a very important resource for scholars worldwide. His was the first architect’s collection to attempt to preserve the best in design for the architectural profession in the future, and it did so by assembling as exemplars surviving drawings by great Renaissance masters and by the leading architects in Britain in the 17th and 18th centuries and his near contemporaries such as Sir William Chambers, Robert Adam and George Dance the Younger. These drawings sit side by side with 9,000 drawings in Soane’s own hand or those of the pupils in his office, covering his early work as a student, his time in Italy and the drawings produced in the course of his architectural practice from 1780 until the 1830s.

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