Each shaped oval, each side applied with a coat-of-arms below a duke's coronet, with a finial cast as a duke's coronet, marked inside, on coats-of-arms and finial
The arms are those of Cavendish quartering Boyle and Clifford for William, 6th Duke of Devonshire (1790-1858). William, 6th Duke of Devonshire was the only son of William, 5th Duke of Devonshire and his wife, the notorious court beauty and inveterate gambler, Lady Georgiana Spencer. He was known as 'The Bachelor Duke' and was a leading figure of Regency and early Victorian society as well as a close friend to George IV and Tsar Nicholas I. He was a renowned collector of classical and contemporary sculpture and had superb book collection. He carried out extensive renovations at his estates of Chatsworth and Hardwick Hall and Lismore Castle in Ireland. Under the Duke's enthusiastic patronage, his gardener and estate manager Joseph Paxton created a magnificent glass conservatory at Chatsworth which was to be the model for the Paxton's design of the Crystal Palace in 1851.