Missing plaque nearby. May be the circular black element above the building passage.
https://www.mapillary.com/app/?pKey=418844212538535&focus=photo

Sources (use as reference only!)
"Circular cast metal ‘fire insurance’ plaque at No.8, The Parade, Kilkenny City."
http://kilkennyheritage.ie/wp-content/uploads/2017/01/Kilkenny-Audit-of-Memorials-Final-Report-15-11-10.pdf