Catalogue of very important illuminated manuscripts and printed books selected from the renowned library formed by Baron Horace de Landau (1824-1903), maintained and augmented by his niece Madame Finaly, of Florence (d. 1938) and now sold in accordance with the terms of her will and on the instructions of her heirs, the present owners § The second portion: the famous musical collection § The third portion (catalogues of selections from the Landau-Finaly library, sold in London, by Sotheby & Co., 12 July 1948-31 October 1949)