Twenty interlaced Celtic roundels fill the entire carpet page of the Book of Durrow in this striking early photographic postcard, the ancient knotwork patterns leaping off the cream card stock with an almost tactile intensity — a remarkable reproduction of one of Ireland's oldest surviving illuminated manuscripts, created by monks of the Columban tradition around 650–700 CE. The Book of Durrow, older even than the Book of Kells and acquired by Trinity College Dublin in the 1660s, was celebrated in the early twentieth century as a supreme example of Insular art, and postcards reproducing its carpet pages served as important vehicles for spreading awareness of Ireland's early Christian artistic heritage during the years of cultural nationalism following independence. Like its companion card (PC-00882, Book of Kells), this card bears the "Printed in Ireland" box on its divided back, linking both to a Trinity College–associated postcard series produced after 1922.