EV1597
Illuminations by Vagans
Solution
Extra letters give IE TCD MS 58 FOLIO 27V, referencing a page of THE BOOK OF KELLS showing the symbols of the four evangelists.
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A full review of this puzzle can be seen over on fifteensquared.
Very much enjoyed tackling and solving this one. Left a nice looking grid even without my artwork. Thank you Vagans for the challenge. Stu (Cagey)
Welcome to the blog, Stuart.