The Boxer Codex, from the Treasures of the Lilly Collections, ca. 1590. More info: http://www.indiana.edu/~liblilly/digital/collections/items/show/93
James Joyce's Ulysses containing one-of-a-kind soft-ground sketches by Henry Matisse, ca. 1936. More info: http://www.indiana.edu/~liblilly/joyce/later.html