The final shot of this particular strip of negatives from fifty or more years ago provides a bit of a clue as to how the various views of the area around Shaw Lane, Halifax, fit together. It is a bit like playing three dimensional chess, in that you are not only trying to remember where you walked over half a century ago, but also trying to fit the buildings and roads into a plan that no longer exists. With the help, however, of an old map, I think I have made a decent attack on the problem, although possibly not a check-mate.
It is this final shot that provided the main clue, because it not only shows the "tunnel" entrance, but also its location in relation to the rest of Shaw Lane. I seem to remember saying a few days ago that this was an area of Halifax that had seen little change. After retracing my steps and comparing what is there now with was was there in the late 1960s, I might need to amend that conclusion. Plus ca change.