Catalogue of manuscripts and early printed books from the libraries of William Morris, Richard Bennett, Bertram, fourth earl of Ashburnham, and other sources, now forming portion of the library of J. Pierpont Morgan.

Of the Manuscripts volume 125 copies were printed ... Of the Early printed books volumes, 175.
Library has copy no. 1 printed on vellum.
The English incunabula were cataloged by E. Gordon Duff; Horae by A.W. Pollard; French and Italian incunabula by Pollard and Robert Proctor jointly; German illustrated books by Proctor; incunabula of German and the Low countries by Stephen Aldrich; manuscripts by M.R. James. General editor, A.W. Pollard.