Music, Continental manuscripts and printed books, science and medicine : Comprising printed books, autograph letters and manuscripts including the Edward German archive, an apparently unpublished and unknown piano work of Franz Liszt; an autograph transcription by Purcell of a canon by John Bull; seventeen poems by Egon Schiele; volumes from the diary of Eugène Delacroix; a document signed jointly by Louis XVI and Marie Antoinette; Piranesi, Vedute di Roma, (c. 1750) and Carceri d’invenzione (c. 1760) (catalogue of an auction sale conducted by Sotheby's, London, 26-27 November 1987)