BENCHMARKS continued
Another one discovered by colleague M.C. Unusually, it's on a horizontal surface - the doorstep of the building attached to the Anglican Church on Main Street, Rathfarnham.
Below: The 'mark (bottom right) on the building on Main Street, Rathfarnham.
Above: Main Street, Rathfarnham. The 'mark is on the doorstep to the right of the door.