A class 74, but where?

I've acquired this negative of E6108 with no details attached. 

A search of the Six Bells Junction website has revealed that this loco worked part of 'The Hampshireman' railtour of 03/11/1968. Details here. 
According to the website E6108 worked from Waterloo to Fareham, then Totton - Brockenhurst - Bournemouth Central - Poole, Poole - Broadstone - Blandford Forum. It was then on the rear of the train from Blandford to Broadstone where it was removed.
Of the locations where the loco was either attached or detached I don't think it is either Fareham or Totton and have never seen the skies over Blandford or Broadstone to make a judgement either way. 
Of course I could be wrong about this being on the railtour!
Is there anyone who can ID the location for me please? Any help appreciated.
Confirmed as Broadstone, thanks to those who helped with identifying the location.