The H.M. Briggs Library holds five illuminated manuscript leaves, or single pages, consisting of religious texts dating from the 13th to the 15th centuries. One leaf is from the Biblia Sacra Latina (Vulgate Bible), handwritten on vellum and dating to the 13th century. It features wide margins, red and blue chapter numerals, historiated and illuminated initials, and intricate penwork ornamentation.
The remaining four leaves are from the Hours of the Virgin, a section of the Book of Hours, a devotional text widely used during the Middle Ages. These 15th-century vellum leaves originate from France, Flanders, and Paris, with one printed incunabula leaf produced by Philippe Pigouchet for Simon Vostre in 1496. The leaves include rubricated and historiated initials, decorative borders, and elaborate ornamentation in red, blue, and gold. The Hours of the Virgin, also known as the Little Office of the Blessed Virgin Mary, includes prayers, hymns, psalms, and lessons said at each of the eight canonical hours. The leaves were acquired from the estate of Morris Elmer Nellermoe, Jr. (1926–2004).