An almost identical armchair is in the Untermyer Collection in the Metropolitan Museum (illustrated in Y. Hackenbroch, English Furniture in the Irwin Untermyer Collection London, 1958, pp.31-32, pls.122, 123 and 125, figs. 149-151). A pair of armchairs, together with a pair of single chairs, from the collection of H. James Yates, Esq., were sold Sotheby's, London, 6 June 1958, lot 110; these did not have the apron carving and small variations in the carving. A furhter four side chairs of this latter pattern were sold in the collection of H.J. Joel, Esq., Childwick Bury, St Alban's, Hertfordshire, Christie's House sale, 15 May 1978, lot 78. The Yates and Joel sets were subsequently joined together and the set of ten was sold in the von Bulow Collection, Sotheby's, New York, 28-29 October 1989, lot 362
There are designs for chairs with similar features in Thomas Chippendale, The Gentleman and Cabinet Maker's Director, 1st edition, pls. XII, XIII, XIV, XV