Missing plaque, I believe it is located on the middle column here.

Sources (use as reference only!)
"Commemorative plaque acknowledging those involved in reconstruction work at the Tholsel 1947-52"

[Another quotation from this source will be given in the first comment.]

- https://consult.kilkenny.ie/ga/system/files/materials/2638/Tholsel_Archaeology%20Report%20%281%29.pdf