Ok..You are looking at a pic taken from South Tower, that much I'm pretty sure of,..the photo is way too low for a plane, but perfect, off say, the top of the 12th floor.
On the very left and just out of camera shot is the old Co-op which was on the corner of Bloomsbury St/Newdegate St.
In Newdegate St about 30 yards down on the left, stood the BRS (I know because I helped strip the place of all its lead)..Newdegate St was a dead end, the Railway passed across at the bottom.
On the left two thirds up, you can see the end of a White house..this pic is already on here somewhere as was taken in Ashted Row..move along Ashted Row to the right and up you'll come to the Ashted Picture house, near the corner of Willis St/Ashted Row, further along and on the left you'll come up to the old Church yard at Gt Brook St/Barrack St.
The road at the bottom running up to the right is, I think Heneage St..if it isn't, it certainly runs into it, but I'm willing to bet it IS Heneage...either that or the next one up on the left certainly is..
Paines (or Paynes) the Chippy is just out of sight on the left, before you got to Newdegate, there was several shops there including a paper shop..
Now I'm pretty much out of ideas here..hey, I was only a kid.
Hope it helps.
Just had a thought! did the BRS have TWO entrances? if so, it makes a lot of sense..