Hi Maria,
The entry reads:
Inner Wall C - east side, south end (All lairs cost £21.00)
Wall C, Lair No. 118
Wall Tablet - illegible, also small wall tablet to right - illegible
Robert Gilmour, flesher, 8th August 1925
I've attached a bird's eye view to show you where Wall C is and marked compass points. I imagine if both tablets were illegible when the survey was done, they'll be in an even worse state now.
If you are in a position to visit, the lair numbers are inscribed along the top of each wall and although you might not be able to read anything, with a bit of luck (and no ivy), the number will be visible.
Anne