A metamorphic armchair of this model was published in Ackerman's Repository in July 1811 and was described as 'This ingenious piece of furniture .. manufactured at Messrs. Morgan and Sanders', Catherine-St Strand' (see: S.Jones and P.Agius, Ackerman's Regency Furniture and Interiors, Marlborough, 1984, fig.29). An example by Morgan and Sanders is at Trinity College, Oxford (see: R.Edwards and P.Macquoid, The Dictionary of English Furniture, rev.ed., London, 1954, vol.II, p.291, fig.15)