The Clark holds a modest collection of books printed before 1501. Of its forty incunabula (three of which are leaf books), several survive in contemporary bindings and/or bear manuscript marginalia, provenance marks, and decorative ornamentation.
- leaf from the Gutenberg Bible (Mainz, ca. 1453–1455), the first book printed in the West with movable metal type. It was published in leaf-book form as A Noble Fragment.
- Petrarch’s De historia Griseldis (Cologne, ca. 1469). This volume is the oldest complete printed book held by the University of California, Los Angeles.
- Gerardus de Vliederhoven’s Cordyal of the Four Last and Final Things (Westminster, 1479). Printed by England’s first printer, William Caxton, this book from the Paul Chrzanowski Collection is the first complete copy of a Caxton book to enter any of the University of California library collections.
- UCLA Library Catalog: Clark holdings