This mirror corresponds to Robert Adam's design for a pier glass for 'the Parlour' at Kenwood House, London, illustrated in Works in Architecture of Robert and James Adam, 1774, vol. I, no. II, pl. VIII. The present mirror, executed in ormolu, is almost identical to an example from the Seidenberg collection and illustrated in J. F. Sandberg, 'Edward F. Caldwell and Company', The Magazine Antiques, February 1998, p. 311, pl. III. A design for a girandole of the same model dating from 1927 is located in the Caldwell company archive at the New York Public Library.