The Helmut N. Friedlaender library. Part I [Manuscripts; incunabula; science and literature] § Part II [Documents bearing wax seals; printed books: Aldine Press, Ashendene Press, Estienne Press, Golden Cockerel Press; Judaica and Hebraica; laws and statutes; Roxburghe Club; reference and facsimiles] (catalogues for auctions conducted by Christie, Manson & Woods International Inc. / Christie's East, New York, 23-24 April 2001)