The UNM Libraries Special Collection, located in the Center for Southwest Research, has a few medieval manuscripts, including:
A collection of medieval manuscript leaves, 1150-1470. ( call number: Archival material 1150)
[Sheet 1] Glossed Psalter with Glossa ordinaria of Anslem of Laon, Italy, ca. 1150
[Sheet 2] French Romanesque Giant Bible, Northeastern France or Flanders, ca. 1150
[Sheet 3] Romanesque German Collectar, Germany, ca. 1180
[Sheet 4] Petrus Riga, Aurora (The Dawn), Latin verse, France, ca. 1220
[Sheet 5 - 7] Three Consecutive Folios from a Glossed Bible, Paris, ca. 1230
[Sheet 8] Pocket Bible, paris, ca. 1260
[Sheet 9] Decorative Breviary, Flanders, ca. 1350
[Sheet 10-11] Immaculate Kalendar Folios from a Book of Hours (Cogney family), Eastern France, ca. 1470.
The Center for Southwest Research (CSWR) and Special collection have a few medieval imprints. Follow this link to see the titles. These include: