The chandelier, intended to be illuminated by candles, is attributed the Cockspur Street firm of Messrs. Hancock & Rixon. The firm was established as early as the 1760s by Colebron Hancock and continued through several partnerships, including Hancock & Shepherd (1796) and Hancock, Shepherd & Rixon (1814), at which time their bill described them as `Glass Manufacturers, By Special Appointment To His Britannic Majesty and the Royal Family'. The firm supplied a number of chandeliers, lamps and associated objects to the Royal household between 1832 and 1857 including a magnificent sixty-light gilt-bronze chandelier designed by A.W.N Pugin for the Queen's Guard Chamber, Windsor Castle (1828 - 30) and `4 large chandeliers for the Grand Reception Rms - Windsor' (1835) (payments recorded in the Lord Chamberlain's accounts). As Hancock & Co they supplied items to Chatsworth, Derbyshire, between 1820 - 35 (G. Beard & C. Gilbert, Leeds, 1986, pp. 392 - 393). In 1851 they exhibited a 32 light cut-glass chandelier at the Great Exhibition.
Several of the chandeliers mentioned bear comparison with the example offered here and it's appropriate that Hancock might have supplied such opulent light fittings for 45 Berkeley Square, the London mansion of Lord Clive, Earl of Powis, whose heirs continued to occupy it until 1936.