We have studied this image carefully, and we are sure it has been photoshopped. Either that, or those responsible have deliberately chosen a point* on Forest Road near the junction with Wood Street in order to perpetrate their deception.
The GNERS would like to put out an appeal to those familiar with the area for a genuine photograph showing the correct score, so that we can set the record straight.
Our geographical section has analysed this map, and has come to the conclusion that the most promising locations will probably be found somewhere on Philip Lane, or possibly along the Great Cambridge Road. Another possibility could be the North Circular Road, in the Edmonton area, perhaps near Silver Street station.
* no pun intended
[Thanks again to Alan for bringing this to our attention]