This is the board in The Fountain, London-/Derry/Doire visible in the distance in True Blue. The panels feature local spots from days-gone-by.
A piece of the old Gaol still stands, between Bishop Street and The Fountain.
Wapping Lane still exists. One can view census records for Clarence Place and Wapping Lane from 1901 at the National Archives.
It would seem that the mural being painted in the top panel was in Clarence Place? (Inferred from this first-person account of life in The Fountain from the Londonderry Sentinel. (Add a comment if you can confirm/refute this.)
Click and click again to enlarge (to 1370 x 1984)
Copyright © 2013 Extramural Activity
Camera Settings: f8, 1/500, ISO 400, full size 2619 x 3792
text: X00940 past the gaol and down behind the fountain wapping lane clarence place