Primary Resources in Ireland
The Book of Kells (Trinity College Dublin MS 58) is celebrated for its lavish decoration. The manuscript from around the year 806 contains the four Gospels in Latin based on a Vulgate text, written on vellum (which is treated calfskin).
Here is the Trinity College version of our Library of Congress: http://digitalcollections.tcd.ie/home/index.php?DRIS_ID=MS58_003v
Here is a short, 1-minute video on the Book of Kells: https://youtu.be/Ev_6NduOeYg