A William IV mahogany circular extending dining table circa 1835, after a design by Robert Jupe, made by Johnstone, Jupe & Co.

the revolving circular segmented top with expanding `capstan'  mechanism, the bead-moulded frieze above a baluster-turned pillar with a fluted collar, on a concave sided plinth with lotus leaf carved scroll feet, together with a set of eight small leaf segment extensions and a set of eight large leaf segment extensions, the fixed and additional leaf segments with brass tips

The Hon. Mark Francis Napier, Puttenden Manor, Lingfield
Claude Inverness Napier of Eastmill Manor, Fordingbridge
Thence by descent to the present owner 

The design for this table was patented in 1835 by Robert Jupe, upholsterer of 47 Welbeck Street, Cavendish Square. The patent specification states that the table was `an improved expanding table so constructed that the sections composing its surface may be caused to diverge from a common centre and that the spaces caused thereby may be filled by inserting leaves or filling pieces'. The first tables of this type were produced by Jupe in association with the cabinet-maker John Johnstone of New Bond Street, and like the present example carry a brass boss to the central mechanism engraved `JUPES PATENT'.

Related examples are illustrated in Christopher Gilbert, Pictorial Dictionary of Marked London Furniture 1700-1840, 1996, pp.283-285, figs. 530-535 (sold Christie's South Kensington, 6 July 1988); E. Aslin, 19th Century English Furniture, 1962, pl.5; and Frances Collard, Regency Furniture, 1985, p.24. Comparable Jupe tables sold at auction include an example illustrated in Country Life 27 October 1994, p.69, Christie's London, 6 July 1995, lot 132, Christie's New York, 17 October 1997, lot 91, Sotheby's New York, 17 October 1997, lot 91, Sotheby's London,  7 July 1995, lot 156, 10 July 1998, lot 115 and 7 July 2000, lot 88 and Bonhams London, 12 February 2002, lot 85.