The Roman stool pattern derives from Thomas Hope's Household Furniture and Interior Decoration, London, 1807, pl. 12, fig. 4; while the sheep monopodia derive from a 'Drawing Room' chair pattern in Thomas Sheraton's Cabinet Maker, Upholsterer and General Artist's Encyclopedia, London, 1804.
A stool of ebonised and gilded ram-monopodia is illustrated in F. Collard, Regency Furniture, Woodbridge, 1985, p. 98.