Description, dated 10 March 1852, by Benjamin Lewis Vulliamy (1780-1854), clockmaker, of the mechanism of the globe clock presented by him to SA in 1850. With five drawings (8 figures), dated 9 March 1852. See Mus. Cat., no. 908; DNB. The silver casing of the weight of the clock is engraved with a map of the world copied from the 'Mappe-mundi Geohydrographique' by Sanson, 1687. The engraving was dated by R. A. Skelton as c. 1700 (see letter, 17 Apr. 1951 laid down on the front endpaper).
A transcription is also available on the online catalogue of the Society of Antiquaries.