Aberystwyth during the Second World War, he took an interest in the National Library's small collection of fifteenth-century printed books and produced a Hand-list of incunabula that was published as a supplement to the National Library of Wales Journal. The hand-list and its addenda and corrigenda describes 129 books, mostly printed in Germany, Italy and France, although examples from the Netherlands and England were also listed. Scholderer noted that some of the forty-five books printed in France, particularly those in the vernacular, were very rare. Sixteenth-century imprints There are approximately 2,500 sixteenth-century European imprints in the Library. Works from the leading scholar-printers of the early sixteenth-century are represented in the collection, which covers a broad array of subjects. These include Johann Froben (Basle), Jodocus Badius (Lyons and Paris), Robert Estienne (Paris) and Aldus Manutius (Venice). Aldus Manutius of Venice, who is known for his dolphin and anchor printer's device, was the finest of the Italian printers of this period and about a hundred examples of his works, known as Aldines, are in the National Library. The Library's also owns works from the sixteenth-century Antwerp press of Christophe Plantin and his son-in-law, Balthasar Moretus, who published De Symbolis Heroicis (1634) with its title-page designed by Peter Paul Rubens. The collection of French medieval romances and editions of the Roman de la rose from the library of F. W. Bourdillon and the Aldines, which are from the collection of J. Burleigh James, are important features. The National Library of Wales has one of the two copies of the 1539 edition of Miles Coverdale's Great Bible, that were printed on vellum and illuminated throughout. The other copy is in the library of St. John's College, Cambridge. Private presses The Library has a substantial private press collection, some 1,800 volumes in total, with representative examples from all of the important British presses. The holdings of ordinary and special bindings of the Gregynog Press books are comprehensive and along with the reference collection from Gregynog, form the core of the National Library's collection of private press editions. However, the Library also has a complete set of the Kelmscott Press publications that Sir John Williams collected, including The Works of Geoffrey Chaucer (1896). The private press collection has been developed through further acquisitions by donation, purchase and legal deposit, and contains examples of the productions by the Doves Press, Ashendene Press and the Roxburghe Club. Works